I understand what you are trying to say but even if you had picked up your PS3 when it launched in the fall/winter of 2006 you should have had an idea of the typs's of games and franchises it would be getting. As for Treasure developed games and shooters, if you didn't know which system was going to get the majority of these games(since they are apparently your favorites) you should have held off on your purchase until you had more information.
Having said all of that, now that you know which console has the games you like best, theres really no more need for debate. Go pick up a 360 and start enjoying some Treasure made games and an abundance of shooters(among other gaming experiences). You'll have both systems and will be able to have "all" of the exclusives. Surely you didn't need me and the rest of DP to tell you this.