valrus: awesome list, I actually had no idea Banner Saga was isometric and turn based. Checked out a gameplay vid and I'm definitely interested. Will give the others a look too.
Shining force looks interesting, but the superimposed virtual pad for a game that could benefit from touch is unfortunate. Record of Agarest War looks a lot more promising, but the price tag is a big gamble in terms of how the controls feel. I'd be concerned it's like FFT (also a high price at the time) which I loved on a real gamepad but struggled with on touch.
But that's a bunch of great suggestions, many thanks!
BlueSalamander: looks interesting, very much along the right lines. Will take a look.
Orymus3: yeah the XCOM series is one I've managed to miss over the years (not on purpose), might finally be time to give it a proper look.
GoCatGo: say what you want about gaming on mobile - as long as I have a device in my pocket at all times in my busy life, I'll be in the market for a game I can jump into easily when the opportunity arises. Of course I'd rather be playing games on PC (or console, for that matter), but it doesn't always work out that way in reality. For me at least..