It is not Yoshi. Read the part about doing well in tournies. Same goes for Sheik, Ike and PT ...unless I'm mistaken...
DK and Wario have tournament wins, as does Lucario.
Wario has incredibly flexible recovery (I mean, seriously, he has THREE recovery moves).
Lucario's upB has no hitbox and DK's has poor vertical distance.
Lucario has wall cling and DK's has insane priority and enough vertical height(about the same as Mario's up-B)
Both Lucario and DK have laggy KO moves.
DK's only laggy KO move is F-smash, and D-smash has little lag, Lucario's only laggy one's are f-smash and u-smash(idk if u-smash is considered a KO move
Lucario has slightly more trouble killing due to lack of power before Aura kicks in. DK can have issues killing due to his slow-*** KO moves, particularly f-smash.
Lucario is right, but DK's d-smash, Giant punch, U-smash, U-air and Bair come out very quickly
DK can pressure in midair with b-air and u-air. I would say Lucario is much better at it due to f-air combos and d-air shuffling.
DK doesnt have an air pressure game>.>, except that he has 3 spikes. Fair and dair give Lucario great air pressure
Lucario can turn a match around because of Aura, and DK is a brute that can get a kill in about 5 or 6 attacks, not to mention his prolific spiking ability.
Only thing is the whole dedication bit and top players using them. I haven't heard much about top players using DKBum, Bigfoot, Ripple, and Azen is the only top Lucario main I've heard of.There's more I'm sure
I would say it's either of those. Lucario is probably more likely.