Start with 52 then then 52 pick-up that started the ongoing Booster Gold series. Or if you don't want to go through a lot of character development then you might as well start from 32. Though i'd choose with 52, that's where Booster got the biggest push that eventually led up to his second solo series.
I'd like to write with Icarus…oh wait, that's one of my alts… Um…how about Premonition…nope, another one of my alts. I think that Dark Huntress, Gambler, Darkchild, Slight, Sha, and Feral Nova are also my alts. xP In fact, this entire site is NOTHING but my alts. (Real answer: I don't write well with characters that aren't mine. That's just how it is, I'd love to try sometime)