File1299371066.gif-(143 KB, 1577x1054, RPG Chart.gif)
As for the mecha subject, I've got some stuff, yes, I'll upload it as well.
Picture uploaded, it's the RPG chart. Don't take it seriously.
As to stop rollplaying, well, you have to take into consideration that not everyone enjoys roleplaying. Some are in it to roll dice and kill/loot monsters.
With that in mind, if you make a huge switch, like from D&D to Dogs in the Vineyard, your roommate's head might explode. (I assume he enjoys D&D since that's the rollplaying game by excelence, not that you can't roleplay with it)
Try something like Legends of Anglerre, it's hard to min-max in that game, and it encourages to think outside the box/do cool shit. Also aspects of the character can be incorporated into the mechanics via Fate points, so the system itself pushes you towards acting like your character would by rewarding.
Did you mean fantasy games or would you prefer something else?