Im currently learning Modo (switching over from 3DS Max).
Although Im far dfrom being an expert, the simple workflows of Modo made it possible to be within 3 weeks nealy as productive as with Max which I used for years.
And a big helper in not only learning Modo (including animation), but also exporting to UE, is a swiss guy named Peter Stammbach.
He is awesome !!!
Here are some of his Modo tutorials : https://www.youtube.com/user/stammpe2
I love especially the latest one : how to bring the rounded edge shader into Unreal Engine
Needless to say that Im totally excited about Modo. Modeling and UVing is easy and a flawless import workflow with Unreal Engine