I don't think I've seen a Vader match in my life to be fair, aside from Vader Vs Ospreay which was a complete farce (and soured me on him when I heard Ospreay's interview about it).
Oh and probably the various WWE returns, but only the much later ones (e.g. Vader Vs Slater).
Can't judge him at all really. But I can't imagine he came close to Taker.