Most of these games will be on sale for the same price, or less, around Christmas.
Especially the new releases. That's only a month away. Don't feel pressured to buy the game you know you don't have time to play or you will be kicking yourself in a few weeks.
Just a reminder.
That said, these are my thoughts and recommendations:
Titanfall 2 and BF1 have very nice prices, especially with the 10% off, but EA ABSOLUTELY will have these on sale again in a month.
Digimon Cybersleuth and Guilty Gear Xrd Rev. are a steal for $18
Vita version of Digimon is excellent, $12 is fantastic.
Vita version of XCOM has issues but is absolutely worth $5
Darkest Dungeon is amazing, buy it.
SFV, despite all the negativity that surrounds it, is a great game for $30 with the Season Pass included.
One Piece: Pirate Warriors 3 is a great musou and I don't even know anything or give a shit about One Piece. One of the better-performing musous on Vita, too. But the PS4 version is the way to go with the 60fps and ludicrous amounts of enemies.
Skyrim for $30 is the price the game should have launched with. Would also bet my left shoe it will be on sale during Christmas.