I like them both for different reasons, and I dislike them both for different reasons.
Here's my experience.
Ups for Ace
Seems stronger
Hits faster
All of the sides I get (acid reflux, Trensomnia, sweating, paranoia) aren't as bad
Downs for Ace
Everyday pins
Tren Cough
Ups for Enth
Less Pins
No Tren Cough
Downs for Enth
Seems weaker mg for mg
All of the sides I get are worse (except Tren cough, which I've never gotten from Enth)
Like I said, they both have their ups and downs.