Son of a... this might take a while.
-Guinness: my default chain GOOD beer, always better from the tap (this is the case with any brew though). Especially good on cold winter nights. One of my favorite Guinness memories was enjoying a couple of pints in a Dublin bar while watching traditional Irish dancing/music. Can't get much better than that.
-Corona: a good, light, summertime beer - always better with the lime. This is more my "activity" beer, aka if I'm in a crowded bar or club and don't want to be bogged down by something heavier. I've heard people claim that Dos Equis is better, and that is a good beer in and of itself, but Corona has just the right amount of lightness for my tastes.
-Blue Moon: great, fruity wheat beer. As with Corona, having the fruit (in this case, orange slice) with the pint is an essential. Recommended for those who like sweet beers, or those who don't usually go for a Mike's Hard Lemonade instead of beer. For me at least, this is the best beer to have with food (particularly chicken wings).
-Hebrew Ale (get it?): ok, it was more of a gimmick beer for me at first. It's grown on me since, though. Goes down smooth with a great aftertaste. Lchaim.
-Killian's Red: nice middle of the road texture to it. This one just brings back fond memories for me since it's one of the main beers I drank during college, along with Pilsner Urquell. It's not spectacular, but it's not crap either.
-Samuel Smith Taddy Porter: richer than Guinness. 'Nuff said.
-Chimay Red: pretty good. Kind of has an herby flavor to it, though I haven't had it enough times to give it a fair rating... usually because it's so damn expensive.
Those are a few, anyways. You will NEVER, EVER NEVER, NEVER EVER, EVER NEVER hear me praise the great taste of anything such as Natural Light, Keystone, Coors, or any other horse-piss water passing as "beer." I consider these and similar types to be "utility beer", aka ONLY good for drinking games like beer pong, flip cup, etc. The only slight exception I'll make is for Bud Light, and I'll only have that if there's a special on it in the bar I'm watching the game in.