I have the Sapphire game, and whenever I restart I always HAVE to choose Mudkip!! Also, one of the times I restarted, I got a FEMALE Mudkip! Later in the game, I caught a male Marill, Put the two into the Poke'mon daycare, and when I got the egg, of course, it was a baby Mudkip!!
When i was a kid i chose Treecko, but i trained him bad. Then i started to choose Torchic, and i liked that little guy. But now, i'd rather choosing Mudkip, because...i don't fu**ing know...*insert reasonable reason here*