Well, for the Hoenn Starters, I'll probably just pick Treeko for the heck of it, I can already migrate them from Saphire/Emerald if I really want them.
However, I lost my copy of Leaf Green T_T So I'll need to decide for that one. I've always liked Charmander, I don't know why, but the fire type starter always appeals to me more than the rest, but upon the release of Gen IV, I've started to alter my choices, aside from Gen II starters, I've altered them. I started picking the other two. I might get Charmander, but then again, Blastoise is bad ass, so why not him? Venusaur is always a good choice, but whatever I pick, my brother will pick one of the other two and I'll breed them so we both have one of both, then I'll probably use the GTS to locate the last one, but I'll probably end up picking Charmander while my brother picks Squirtle.