hahahhahaha... the TS9 is a good one. used it for years. best imo when used with a humbucker equipt guitar played LOUD. i've used it with a strat, but not as good. and some do not like the mid frq sound it adds to ur basic guitar sound. so, test it out 1st with ur rig.
the boss SD1 is great too. i've used that too. but i need to turn the tone at abt 9-11 o'clock to get a nice warm sound. anything beyond that, will be too trebly for me. others might have different set-up tho... and its not as SMOOTH as the TS9.
another i'll recommend is the BD2 blues driver. its grittier, dirtier and have more gain than the ts9. i feel its a bit more versatile. and its got that 'texas sizzle' sort of tone.
try also the OD3 overdrive. its 'creamier' than all the top three pedals. the tone knob is useful throughout al its range. its got more gain than the SD1 eventhough its named 'overdrive' instead of 'super overdrive'. check it out too.
another thing for me which makes a good overdrive pedal is, it must be able to clean-up nicely when u lower the volume of ur guitar. so u don't have to constantly switch on and off the pedal to get the clean/driven sound too much.
hmmmm... this post is too long. but hope it helps with the query...