Can you people of OnRPG introduce me to FPS?

It seems like the most popular and most played (and mostly released on XBox360) genre of game, is FPS. At first, I didn't like 1st person shooter. I hardly liked 1st person anything. mainly because I like to see what I'm playing as. but I didn't like FPS, because of these 2 reasons.

1: I thought all it was about was running around, shooting people, and nothing but, which sounded lacking to me.

2: I suck at FPS, especially when there's a sniper, and my fear of a FPS, was to constantly over and over again get sneaked up on and head shot by a sniper, or get head shot by a sniper that is far away, and that it would make me look bad, and make me look suckish at FPS, and get called a noob.

So, can you guys try and tell me the good things about FPS? can you tell me of some good 3rd person shooters? Can you tell me of some FPS for low-rate users or the Wii?

What's so special about FPS?