I really don't think so, I don't think the Donner movies are as timeless/classic as people here say, but I do think Reeve has been the perfect Superman, he's the only thing in those movies that is truly timeless, I don't think it's a generational thing, as far as I know, G. Reeves' Superman was never as universally praised and loved as CR was, but there was no internet back then so what do I know
Anyway, Reeve was Superman back in 78, but his portrayal is still consistent with the best modern characterizations including in the new 52 and the new adventures of Superman.
And Cavill's portrayal is consistent with very little, even in the new 52, bear in mind, I loved what they did with Superman in MoS as a "first step" in becoming the Superman we know, but for me it was a direction that needs to be completed with a definitive settlement of the character in future movies, maybe BvS will provide that, but as of right now, I love Cavill, but he can't touch Reeve.