Klitschko took some unexpected Ls early in his career but since he got with Steward he polished his style and went on toa long reign.
His era wasn't the best but I think he usually fought better opponents than Wilder during his reign, more top 10 guys.
Wilder's best win was the first Ortiz win, I think he gets the most respect for that. Besides Ortiz though the only other top 10 guys he fought were Stiverne (when he fought him the first time, not the shot to shyt version he knocked out years later) and had to fight him to get the belt and Fury who stopped him 2 times and drew one time but to most ppl that was a Fury W too.
Overall I don't think that Wilder and Wlad will be mentioned on the same page, Wladimir dominated for a decade or so, partly with his brother but that serves as an exception because this is the only case where fans don't demand the two top guys to fight each other. Wilder on the other hand amassed plenty of title defenses but generally against lesser opponents, from outside the top 10 and hasn't dominated his era.