A good cut of beef should be well marbled--meaning it has a lot of fat. The problem with most meat today is they trim off all the fat so it is hard to find good meat. The REAL trick to finding a good cut of beef is to find someone that processes it well. Our grocery store here has HORRIBLE beef. The meat market isn't much better. The best beef around here is at Sam's Club. There is a meat market in my in-law's town that sells wonderful beef so we often stock up when we are there too.
I prefer rib-eye's but will ONLY have them if we can grill them. Broiling them or frying them isn't good. A friend has a recipe for frying a fillet that is to die for but she is an better cook then I and I haven't been able to duplicate that.
I use the McCormack's Steakhouse seasoning on my steaks. I coat them well and let them sit for 1/2 hour or so to absorb the seasoning and get to room temp. When you grill them, never poke them with a fork, cut with a knife, etc. Use the hand method to tell doneness. If you like rare the beef should feel like the fleshy part of your hand between your thumb and index finger when your hand is relaxed.