The top 5 ODs/Distortions you've ever tried.

JohnPerry

Weehbo JTM, Bearfoot SYOD3, Minstrel, Page, XTS Imperial 

dogload

In no particular order:

Nobels ODR1+ it's just so versatile
An old 70's Coloursound Tonebender - gnarly but unfortunately I only had it on loan
The Harmonic Percolator clone that my mate built me - it slices and buzzes
My Hello Sailor fuzzface-a-like - it's fuzzy and sooooo camp!
Boss SD-1 - my first.

english_bob

I've made it my mission to build clones of some of the better known, simpler boutique ODs over the next few months to see what all the fuss is about (next up is a Zendrive), so this list might well change (and I might well try to shift the ones I'm less keen on for cheap), but for now:

Skreddy Screwdriver clone (very amp-like, very "vintage" sounding, very versatile, better with single coils)

Foxrox ZIM (great EQ concept, also very flexible because of the card swap thing, built from girders)

Vox Valvetone (808 spec OD- was my go-to for ages with Fender amps, really nice bright tone)

Zoom Ultra Fuzz (actually made me nauseous with tortured pig noises, very versatile fuzz)

BYOC Mighty Mouse RAT clone (cool sound, very versatile, surprisingly good low gain toans as well)

professorben

I have simple tastes. 

Blackstar HT-Dual
turned my JCM800 single channel combo into a 3 channel monster. 

Boss SD-1w
just bloody good at mid boosting for leads. 

Boss BD-2 Keeley mod
smooth and loveliness. 

Boss DF-2
my first drive pedal, little did I know I was spoilt from the start. 

TC Dark Matter
big, loud, versatile, feels like an extra channel on my amp. 

Sassafras

Pork Loin: Loads of bass thump without sacrificing any top-end.
Fat Sandwich: Gets really crunchy but very dynamic and some would say Marshallesque, although I don't hear that.
Boss OD-2: Never leaving my board. It's sort of become my signature sound.
Original Rat: As @Gassage says, it's got this strange metallic sound that works brillianly on slide. In fact, it sounds like slide without even using one.
Original MXR Distortion+: For that smooth 70s distortion. Not much use as a boost though.

Oh, and a Dunlop JH-1 Fuzz Face. OK, I know that makes 6 but only the most pedantic members on here could pick up on that.

impmann

RAT
Nobels ODR
Okko Diablo
Crowther Hotcake (only on some amps though)
Juansolo three-knob tone bender clone

SquireJapan

SD1
DS1
Menatone Wreck'd
Wampler Plexstortion
BD2 into SD1

johnhe

I can't get my all-time favourite list down to less than 6, sorry!  Mine are:

OCD: My always on pedal. I've not played anything which rivals the OCD in my setup for lovely, authentic sounding low gain tones. 

Original TS808: I sold this pedal because it was worth tons of money, and I was getting scared to use it at gigs. Perhaps I shouldn't have sold it, but I have no time for gear which I'm too scared to use. It really was exceptional sounding.

Wampler Plexidrive: I use this on my church board, which stays at church. Very like the OCD, but slightly more woody tones and less mids. Superb cleanup, just like the OCD.

Bogner Blue: Not for everyone, but the natural sounding, authentic, extremely vintagey Marshall tones are just wonderful. Superb clean up too. The downsides are that it's big and expensive, and it doesn't do pumped up, higher gained, mid-fat,compressed tones so well. That's why I bought the.....

Wampler Pinnacle: Reasonably new to me. Lovely vintage Marshall tones. Plenty of compression and fatness if you want them.

Thorpy Gunshot: Very new to me, so totally in the honeymoon phase so far. Overall, it sounds very similar to the Pinnnacle. Probably has less cleanup from the guitars volume knob, but is slightly more natural sounding.

My "almost made the list" pedals are:

Fulldrive 2. Except for the size, this was the perfect replacement for my old tubescreamer, with much more volume and variety available.

SD1. Another great boost pedal, but sounds surprisingly good on it's own.

Keeley Blues Driver. Great for low gain tones especially. Perhaps as good as the OCD or the Plexidrive actually.

Angry Charlie v3: Reluctantly selling this since I couldn't resist the temptation of the Pinnacle and the Gunshot and need to pay for them somehow!! Both the Pinnacle and the Gunshot do vintagey, mid gain tones slightly better than the AC. However, if I wanted slightly heavier, JCM800 tones, nothing could match the AC. Great pedal.

slacker

Klon-bought 2007

KOT v2-bought 2006

FD2 FM-bought 2001

ZVex Super Duper-never got around to buying one

TS808-cant or don't want to afford one

Jonathanthomas83

Gunshot
RYRA Klone
Timmy
SS-3
Pig Hoof - absolutely sings. Kicked off my P-2!

Honourable mentions to:
Amptweaker Tight Metal
Marvel v3

Marktigere1

For me:-

SD1
DS1
BYOC Mouse

Does this mean that the sub 50 quid SD1 is the goto pedal according to this thread?

professorben

Marktigere1 said:

For me:-

SD1
DS1
BYOC Mouse

Does this mean that the sub 50 quid SD1 is the goto pedal according to this thread?

It's a bloody good pedal, and that's not 'good for the money' it's good regardless of the price, the fact it's sub£50 is just icing on the cake. 

DNH

Here's mine: 

Barber Gain Changer
Rockett Guthrie Trapp
EQD Dunes
Catalinbread DLS III
Mad Professor Sweet Honey

All of these are with a Tele into a clean blackface amp. ODs are pretty rig dependent so it would be interesting to know what guitars and amps people are using with their choices.

ChrisCox1994

right now:

Sweet Tea (versatile, only dirt pedal I really need if I'm honest)
SL Drive (great one trick pony)
Fredric Klone (perfect for boosting into either of the above)
Bad Monkey (great low gain tones)
Marshall Drivemaster (more versatile than the SL but huge)

want to try:
Kingsley Jester !!!
KOT