I would say the slower wedge you have. You play every time 10% and you have more chances to hit the ding.
I'd go with my 64° Cleveland wedge. IMHO it's the most important club in my bag (next to my putter) and I miss a lot of dings because it has the fastest meter speed of any club in my bag (3.5).
I wish I had an answer for this but sad to say I'm pretty low on dings from LW to Driver :(
I'd average maybe 5 dings a round & 3 would be from the putter.
Definitely 64° degree wedge
I would pick my 56* wedge . 100 yarder . This will help with the shots below 100 yards .
I would not use my 52* wedge , 115 yards . I would choose my 9 iron 120 yards over it .