Oh, you're in the same spot where I have been couple of months ago...
Anth James was the reason for me to finally get over to FC. Especially his options to slow down the game, to make it way less ice-skating was THE reason for me to change.
I still think that Anth James gives you tons of options to form the gameplay the way you like it.
But the URG gameplay here is also very, very good. It makes the game even heavier, way more slowed down (sometimes even I think it may be too slow), way more tactical.
To be honest, i'm torn apart. There are phases when I like Anth more and then I like URG more. Maybe it depends on my mood
For now, I stick to URG for one special reason:
Maybe it's just a misconfiguration, but when playing with Anth it's still waaaaay to easy to counter attack. Almost 8 out 10 goals happen, because i am able to rush through the defense and create a 1v1 with the opponent's keeper. Even if I load mod options to reduce this like increased defense abilities etc. It still happens too often for MY taste.
Playing with URG, this happens less, which makes this gameplay a bit more realistic.
Long story short: I fear you will have to pay at least one time for Anth James to figure out if you like it.