For me it really depends on the map, not necessarily Basic, Normal or OP. Some maps do not really have enough space to pvp on in my opinion, so on those maps I choose the swordsman kit. (To be said: everytime I choose swordsman kit I also vote basic items)
For example:
Temple (Solo SkyWars) - I choose Swordsman with Basic items
Field ('') - I choose Scout kit and I vote for Normal items.
Seeing as this thread was made to make 1 choise, I will still choose the Scout kit, because I never mind having speed potions but sometimes the chests give better swords than the Swordsman kit. So I believe it sometimes is a waste of your kit.