Boss OD-1, just the right drive/boost for my marshall 2205. Ts808 is also nice but the OD-1 has more bite and brightness and stays more neutral when driving a dirty marhall head.
Boss CE-2, have it for over 20 yrs like the OD-1. Very simple chorus, but it has some kind of awww effect on women which i think is the whole point of using one anyway :lol:
Boss AD-3 Acoustic Processor, if you play amplified (semi)acoustic guitar you need something like this, everything that isnt quite like it should, you can fix it with this. You can also use it on electric guitar btw, its quite an unique soundshaping thingy.
Ive not yet found a distortion unit i really liked to use, at least pushing my amp into heavy distortion always sounded best to me. Exept offcourse for da bR00tAlz i have an old Marshall shred master pedal (which is more or less the preamp stage of the marshall valvestate series) and an MI crunchbox v1. Both are ok i suppose, but not nearly as good as real tube distortion. Also have the Blackstar HT-dist btw, but that has some issues with my marshall i cant work around, on a solid state amp its great though.