Run Legends first. Legends has uniform stats so you won't be competing at a gear deficiency. Robin is either free or cheap, depending on if you are Hero or Villain, and he's a decent enough starter. Once you've got a full suit of PvP gear, if you want to swap to Arenas, go for it. Though personally, I found them to be a bit more annoying, and both Arenas and Legends give the same amount of Marks of Victory, so focusing on just one thing for a while can let you work on grinding up some of those wins feats without having to split your wins across multiple different maps.
Ok thanks yea saw a lot say if u do pvp u will find some styles like Harley boots and rare items only for that mode
Not expressly in the way that people get drops, the way iconic styles drop in PvE content. However, the PvP style sets do have a lot of really neat and unique styles on the gear as you progress. In particular, there are PvP suits for Deadshot, Nightwing, Hush, Red Tornado, Huntress, Deathstroke, and others that are not PvE drops or purchasable with PvE marks, and instead are the styles you pick up as you grind your way through the PvP gear. https://dcuniverseonline.fandom.com/wiki/Iconic_Battle_Suits You can look towards the bottom of the page here and see the PvP style sets. And the PvP suits that are labeled as "retired" are still totally available for purchase through PvP marks. They just no longer have stats on them; they are style-only pieces.
https://dcuniverseonline.fandom.com/wiki/Iconic_Battle_Suits Vendors in the Watchtower or Hall Of Doom. The link will help you.
