Well RTG aside for a moment I play mostly these days only at 32red , 3Dice and somtimes ladbrokes.
Back to RTGS :
Played quite a bit last 6 weeks or so at Inetbet cashed out a few times but support really really does suck big time. They are quite rude in replys some times and at others very selective on if you get a reply or not. Its weird but the only way I can sum up there support is a lack of "humanity" lol if you get my drift. Like robots ... It dont make any odds to me as I closed my account there the other day mainly due to support or Lack off .E.g Why IN 2010 no live support ? this in my book has to be standard. Its a joke. Payouts though were like clock work. No issues in getting your money at all.
Tried Clubworld group lost a few 100 fairly decent opening offers and support was pretty decent. Have not played though again though due to high levels of spam (which have now fully stopped) and the really annoying thing with getting alerts inplay and by the phone each time I deposited , they did explain it was becuase I was a new player. But the tel calls got under my skin. I dont want a casino cold calling me ever no matter what the reason. But they seem to be liked by quite alot and I only stopped playing as I hit shitzer over a number of deposits. I may return there 1 day for a few spins
Interops when I played there no problems. Good support cashed out a few times paid within 24 hours no hassle. Nice outfit in my view I will return there one day.
Lock and the others aint tried mainly due to max cash out restrictions per week and lock does have some nice looking openeing offers but with insane win ratios and MAX cash out on bonus deposits along with the actual bonus amount. Fine for many im sure but not me. Nice site though

If im hammered one night I might try there 400% slots bonus for the hell of it.
Edit : aplogies lock dont seem to have max weekly cashout -) myBad but do still have max cashouts on bonuses.
Rest no idea - but for now its 32red
4dice n such like