WrestleMania 30 had the greater "mania moment" but Mania 34 was overall better from a wrestling standpoint
Dbry vs HHH- Great match
Battle Royal- Average
Shield vs kane and NAO- Horse shyt
Cena vs Wyatt- Average to good match
lesnar vs taker- average match but great moment
Divas match- Meh
Triple Threat- Good Match, again Dbry winning was an historic moment and will be one of the greatest mania moments ever.
Mania 34-
IC Title triple threat- 4+ star match, Best match of the night and better than any match from mania 30
Asuka vs charlotte- another great 4 star match
US title- Average
Mix tag match- Entertaining as hell, most entertaining match of the night, with all the bells and whistles
smackdown tag match- trash
taker vs cena- trash
shane/Dbry vs owens/Zayn- Good match
Raw womens title- Average
AJ vs Nak- great match, easily a 4star match
lesnar vs roman- average match
The only reason Mania 30 was better because of Dbry's coronation and the shows length. But 34 had much better wrestling.