I agree about vdP, but I'd argue Van Aert is up there in terms of versatility, at least above Roglic. Yes, he has won both gt's and a monument, but how versatile do you have to be to do so? I mean was Andy Schleck more versatile than Van Aert for winning both? Some classics you can simply win by being a good climber and that Roglic very much is. Doesn't mean he is super versatile. It also doesn't help Roglic's case that his LBL win must be one of the luckiest monument wins in recent history. If Alaphilippe doesn't have two brain farts within 100 meters he probably finishes 4th in a 4 men group. Instead he wins.
A guy like Van Aert is basically an A or A- in absolutely everything except climbing in which he is only a B+. But because that's the only skill you really need to win gt's, he doesn't have a chance there. The same goes for Lombardia. I would actually make the argument that puts him above Remco in terms of versatility too, who aside from stage racing only ever wins one way, namely by TT'ing away from everyone. As it turns out you can win a lot of races that way, but I don't know if it makes you a versatile rider.