I think in an alt world... i would most likely be a trainer in johto... then again i would need to move to kanto... as far as i see it... kanto is the more modern region, johto is the old timey one... so that means they would hold old ways over new.
For me that would suck! i don't want to be sucked into the "old ways" that and i am sure johto would not be friendly to... well... anyone with a pokemon as a girlfriend... and with river and all, that would mean a LOT of dirty looks.
My first game was Diamond... Then Platinum... The memories of beating that game for the first time. I was so amazed when mugshots were added in Platinum after beating Diamond. In some alternate reality, I would probably be some person from Sinnoh that is a relatively good. Probably a traveler who sometimes makes wrong type match ups and(Sometimes) overlevels one Pokemon in particular.
First Pokemon game I played was Pokemon Pinball on Gameboy. I was around 7 or 6. First actual main release Pokemon game I played was Pokemon Gold. I clocked up a lot of hours on that game at lunch time at primary school with my friends. I was 8 then. I've always gotten one of the Pokemon games when it comes out, never bought both of the releases (like getting Diamond AND pearl). I own a lot of the games, trying to re-complete them over again. I had to fix the battery which sucked. But yeah, I've been playing for 10 years.