Thanks everyone, you guys gave me some good options. I think I'll advise him to do a kolsch first. Like some people suggested, I'm hopeful that brewing will expand his tastes. In general, though, he doesn't usually enjoy the beers I bring over (usually something over 9%, and very flavorful), so I don't know what will happen with him, but there's hope. He likes Corona, which is awful of course, but he also like Sam Adams, so that's a start. I think he just feels like he needs a hobby, and he knows I've been brewing, and I guess he thinks my beers are alright. If he didn't have lots of money, I'd just tell him, like someone suggested, to buy coors light instead. But this way, I'll get extra practice (he'll need help getting started), I'll get to drink more homebrew, and if we're both lucky, he'll start to appreciate decent beer.
Thanks for the thoughts, all. I like the cream ale and blonde ideas, too. I think we have plenty to get started with.