You laugh, yet you too then turn around and recommend, and I quote, an anime that "pokes fun of alot of different animes and mangas" to a guy who only lists 4 animes that he's seen? ^^; I've never seen Gintama so I have no idea if it, like Excel Saga, Genshiken, and Haruhi, is best seen only after a long stay in the anime fandom, but if it is what you say it is then it sounds like he wouldn't get much out of it.
Hell, I've seen over a hundred (106 by my count) and I still have held off on watching Excel Saga. Mostly because of those 106 so few are from the 1990s that I think Excel Saga would be mostly parodying. ^^;