Fallout 4 VR and Skyrim VR are fantastic if you enjoy their pancake versions at all. Fallout is glitchier and runs poorly compared to Skyrim (though it has improved quite a bit since release) but I find the gameplay a better fit for VR than Skyrim. Skyrim VR has enjoyed better mod support though, with a VR version of SKSE and recently, an official(?) VR version of SkyUI. If you go for fallout 4, definitely get it from Steam for the refund option.
I brought the Rift solely on the promise of these two VR ports and I don’t regret it.