Interesting. One thing is sure, nobody does weapons, especially the rocket launcher and shotgun, as well as id. At least they used to; I've not played the latest Doom so can't say.
Also nobody does movement controls as well as id and their engine. Rage still has the best shooter controls for a console controller, as well as for kbm. And no game comes close to combining both control schemes together.
So I'm still kinda bummed that we don't get to see much of id engines anymore. And, I'm even more bummed we don't get a single player Quake. Yea yea yea, everyone kept saying Quake is for MP only but screw that. Both Quake and Quake 2 were great single player games in their own right.
Q2 in particular had a lot of features and design elements that were praised in HL and everyone forgot Q2 did them earlier, sometimes better. Great games, perfect soundtracks too. The late 90's was such a cool time for shooters.