User blog comment:Stbk22/Possible Power up's/Techniques for then new group DxD/@comment-37.231.52.131-20140205053217/@comment-1884090-20140205125919

Issei has for Equipment Ascalon,the Boosted Gear, Scailmail and the Familiar Ryuuteumaru and for techniques he has Boost, Dragon Shot, Dress Break, Billingual, Dragon Flames, Illegal Move Trident, Cardinal Crimson Promotion, Promotion and for now i will just call this Albion's Power(Small Dragons, Divide, Reflect) but not as strong when it comes to Demonic Power

Vali on the other hand has for equipment has the Divine Dividing and Scail Mail for techniques he has Empiero Juggernaut Drive and Immense Demonic Power(due to being a decendent of Lucifier) and Magic Talent

So for the number of Equipment and Techniques it would be Issei, but as for Power I would lean more towards Vali

1. I would compare his Demonic Power to that of a Ultimate Class Devil or above

2. Empiero Juggernaut Drive can kill a god if even he can say in that form for only a moment

Just my opinion