Why though? WEC was the top promotion, along with Shooto, for lighter weight classes. Zuffa even owned WEC and merged it with the UFC.
It makes no sense to not count Aldo's WEC reign; it's literally the same title.
Because you can only make an argument for Volk if you cherrypick and grade on a curve, and don't give credit to the guys who were the top guys in that era
Aldo won his first 10 FW title fights and only had 1 competitive fight in that whole 6-7 year stretch
Volk won his first 6 title fights with a split decision in there
People love to brag that Volk beat Max 3x
Prime Jose never had any rivalries like that becuase he completely DOMINATED everyone for years.
When the torch was passed to Aldo he didn't need 3 fights to put to bed any question as to who was the best.
"But Volk beating max is better than Aldos whole resume?"
Is it?
Max won the title and defended 3x
Faber won the 145 title and won 9 sttaight as lineal 145 champ.
In that run he beat Dominic Cruz who was a 2x ufc champ who won 7 wec and UFC title fights. And Jens Pulver who won 3 UFC title fights. Plus I think he beat 2 Bellator Champs
Even if you only count the UFC portion of Aldos championship tun... he still has Volk beat in basically every category
More title wins
More consecutive wins
More decisive scorecards on his decision wins. (Aldo only had one single 48-47 by one judge in his entire rub
Volk had a SD where he lost 47-48 and had more 48-47s on that card (2) than Aldos entire championship