Well, Flygon is only topped by Salamence is coolness. Garchomp... I never really liked it, just seen as your normal pseudo-legend.
And, yeah, since my bro' got Diamond, he has an equal view as yours. I had several 1 on 1 battles with him (Palkia vs. Dialga), and I just Sashed my Palkia to survive, then dish it out with Spacial Rend.
He has no strategy. xD