I just bought my first rta recently, which has now really gotten me into coil making. I had dabbled a bit before with the rba of my delta II. I bought the zephyrus v2 though about a month ago an have been using it strictly as an rta, haven't even tested a stock coil. I am absolutely in love with it. It was easy to build on as well.
For the preferences you've already listed, the griffin sounds like a good choice. I also just saw a review today for an rta called the "mutank" I believe. It has an option to get a velocity deck for it, for only 8 dollars added on. Both tanks looks nice.
I'd also highly recommending buying a coilmaster kit as well. I think the version 3 is the latest one. I bought mine from myvaporstore for 35 bucks. IMO it is a really great investment. It comes with everything you need to build. Wire cutters, needle nose pliers, flathead and Phillips screwdrivers, ceramic tweezers, normal tweezers, scissors, 10 feet of kanthal and an ohm reader. And of course it comes with the awesome coilmaster jig for wrapping coils. It makes perfect coils very simply. If your new to building and don't already have most of these tools then id pick one up. I think ceramic tweezers bought by themselves run 15 bucks.