Well, as for starters, I'll pick Cindiquil, cuz I did so well with a Typhlosion all of last year at Nationals and Worlds, but really because I'm literally going to be blowing through the game, I've actually got a team of RNG's all at L8 waiting to be transfered over to HG so I can just speed through it, however, in reality I could just use a Fake out Chimchar and that'll get me though completely. That's what I've been doing in this speed runthrough of Pearl (to RNG all the Pearl legendaries again). I've just been using an RNG'd Chimchar and it got me to Palkia in just over 7 hours.