i would not deposit at any rtg other than inetbet and i have played at all casinos mentioned.
i won't go into too many details, but club usa was taken off of my "maybe" list just this week. i don't know if anyone else participated in their weekend contest "codebreaker," but i totally got the shaft by them after making a deposit only to participate in the contest. it was ultimately corrected by a manager, but only after 3 HOURS of chat with the rudest, most offensive customer service rep i have ever encountered. after she spent 2.5 hrs not understanding and telling me i was wrong about terms and conditions that were and were not listed on their site, she finally admitted that i was in fact correct and the issue in question was omitted by them, BUT went on to say that i should have still contacted customer service and couldn't participate in the contest b/c i had already wagered all of the money from that deposit. (what ever happened to even treating the customer with respect, not to mention the customer is always right?) after wasting so much time chatting with this rude person, i wasn't very happy with this to say the least and this only increased to anger when the customer service rep went on to tell me that i was "taking it too seriously" and it "is just money" while adding sarcastic emoticons into the chat. i finally asked to speak to a manager and it was straightened out, but i will NEVER play there again. i also had a cashout problem a long, long time ago there.
in my opinion, the other 3 are straight up theives, especially cool cat and viplounge. i've never attempted to cash out at palace of chace, but have heard similar things about them. i would rank cool cat as one of the very top online casino scam operations and viplounge not too far behind. i have been wrongfully denied winnings at both places and also seen blatantly shady behavior.
i have been playing online as long as it has been possible, so i've tried pretty much every casino that has come and gone. the bottom line to anyone should be whether or not you will get paid if you win, not how big their bonuses are. bonuses don't mean jack if you never see any real cash. that's why i limit my online play these days to inetbet almost exclusively. i've never even had to follow up on a withdrawal from them, a LOT more than i can say for any other casino you asked about. i'm sure others will quickly challenge my comments, but that is fine by me and please do not let it sway your decision. the best thing to do would be google all of these casinos and see what results you come up with. its very easy for affiliates to "pimp" the casino they are getting money from to get as many sign-ups as possible, but i would love to ask these same people whether they actually deposit their own money at these same places.