Personally I'm a bit out of the loop when it comes to drawing tablets, but I still use my ol' trusty Wacom Intuous Pro M. I basically learned drawing with a screenless tablet, so that's still what I'm most comfortable using - especially since I use a lot of keyboard shortcuts. I do also have an iPad and it's definitely nice to draw on it, plus you can easily take it with you. Only downside is, if the rest of your periphery isn't Apple, it's a bit cumbersome to transfer files to say a computer or something (and of course the hefty price).

As for screen tablets, last I heard the Cintique were great, but a bit pricy. Couple years ago other brands like XP-PEN and Huion were already catching up and getting good reviews, so maybe look into them if you're looking for something a bit cheaper, they might be even better by now.