There's not too many people on here that play WoWP. A ton of us play World of Tanks (see the thread [MMO] World of Tanks) and most think that War Thunder is much better with their version of plane combat than Wargaming's version with WoWP.
I have a few planes and I'm up to tier IV in the Russian heavy attack craft, but I have only played probably a couple of hundred battles total across all of the planes I have owned. I still favor tanks more. Plus, WG seems to have a hard-on for dicking attack planes like they like dicking artillery, and since those are both my favorite type of vehicle...
I haven't tried War Thunder yet myself to compare, but I may at some point. They have just started to introduce tanks.