In this video I am comparing the two best wired PC VR headsets: the Reverb G2 and the Valve Index! I can recommend them both to you but there are differences! It absolutely depends on what is more important for you to make the decision for one or the other: picture quality or tracking precision.
In a nutshell: if you want the best picture quality that you can get in VR right now and you do not insist on the best tracking on the market, go for the Reverb G2.
However, if perfect tracking in any kind of situation (controllers behind your back, controllers really close to your headset etc.) is more important to you than the very best picture, then go for the Valve Index.
Again, both headsets are fantastic and you will for sure enjoy your time in Virtual Reality! Please watch above video for more details!