Normally PVE>PVP because it allows you to gather silver,Spirit stones and other items which overall increase your strength if you balance them out in your team they give a higher damage output in ES and Ryoka which ofc are the main focus and in the end help you gather even more items to increase your power in PVP aswell.
Right now at your lvl your main focus should be defo be PVE cause this is basically the start of the game for you and you need resources to get better stuff i recomend getting getting ikkaku madarame and then Kisuke Urehara from lvl 80 tavern and adding them to your formation for now and start saving up coupons for VR and buy lvl 4 Spirit stone packs from shop to get Kisuke a Pure T1(http://forums.gogames.me/forum.p ... ighlight=T1%2Bguide) i redirect you to that link for more info. around lvl 100-110 you should change your focus to primary PVP because you will have enough resources if you are regular and smart with ryoka.