Typically, I'm a die-hard Yamaha fan. My alto is a 62-II and I LOVE it. However, if you don't want to spend a large chunk of money on it, go for an Antigua Winds. My tenor is an Antigua and it's actually pretty good compared to a Yamaha. It's always helpful, though, to go to a music store and try some saxes out to see which is more comfortable.
I love Selmers. They're pricey but great. In my opinion they're some of the best you can get new. Cannonball is another one of my favorites for saxes. Many people (including pros) recommend The Martin tenor as a good vintage. Holton and Buescher are two other good vintage brands.
Some people say vintage is better but I haven't tried enough to know. I say saxes are better when they're cheaper.