honestly if i were new to the ar game and looking to spend a thousand bucks on a carbine, i'd end up doing one of two things. locally, i just saw a colt 6920 with the fde receiver and magpul goodies for $1100. it would be tough to pass that up. the other option i would entertain for a standard config carbine would be bravo co. to my mind both are probably the best choices for the 1k mark. you can spend less and do just fine, and you can spend more and get a little more, but for a rock solid weapon in that price range imho those are the best choices.
that said, i've read of your beef with colt's customer service, and i won't fault any man for shunning a company that he feels treated him poorly. if customer service doesn't treat me well, i don't takeit lightly. however, i will give most companies the chance to make it right, especially if the incident involved one rep. recently i had to send a rifle back to a mfr for the second time, because after i detailed the problem and sent it in the first time, i recieved it back and it wasn't fixed. the issue's origin is still uknown, but there is no way that they could've checked the gun that they supposedly fixed, and not realized that is still didn't work properly. the end result is that they've replaced the rifle altogether with a new one, that i'vepicked up today and will take the the range tomorrow. inspection at the shop when i picked it up today shows that it works properly. pita, yes. a waste of my time, yes. but i'll still buy products from the co., as ultimately they've come through.
all this to say perhaps colt may not deserve a second chance, but it may benefit you to give them one anyway. i've dealt with colt's customer service and they were excellent to me. i understand this may fall on deaf ears, as some men's minds are made up and that's it. if this is you, so be it. as i said, i don't fault you.
enough of my rambling....best of luck in your choice.