i'm in your conscience
I'd definitely consider starting with Torchic, since Blaziken is probably the best Fire type in the game. Lots of good Pokemon in this region, though. Gardevoir, Ludicolo, Manectric, Flygon, Salamence, Absol, Milotic (if you wanna bother with catching a Feebas), Walrein, tons. It's really up to you though. The other starters aren't too bad either I suppose, but I personally find Blaziken the easiest to use and the strongest.
Is that good enough, or would you like more suggestions?