What I've done, and apparently will be doing for another two months, is playing every game that will be represented in Brawl.
I've already played every nearly all the games in all the series represented, but there are always a couple that I never really got around to that I'm picking up now.
I figure this way I will appreciate EVERYTHING in Brawl, not just waiting for stuff I want to see.
Best example, last semester I played all three Prime games. Never beat the first one before I decided to do this, now I have all three under my belt. When they announced the Metroid Prime level, I was **** happy to see it. If I hadn't played through those games I wouldn't have cared in the least.
Since I'm playing the Gamecube Fire Emblem now, I'm appreciating Ike way more now as well. I'm telling you guys, this is a great way to pass the time. Take it from me I've been doing it for half a year now. Even if you've played all the games that we know are represented in Smash right now, go and check out predictions you've never heard of or cared to check out before. (I never touched or even cared to play Pikmin before this idea either, now I'm actually happy to see all the Pikmin crap we've been getting these last two weeks.)
I know this cuts into my time with my 360, but whatever. Smash is the game I want more than anything, and I want to appreciate every little bit of it, so I'm going to do all I can to play everything represented in that series. What better way to fully appreciate the experience Sakurai is preparing for us? Highly suggest you guys go out and try this out yourselves, trust me its worth it.