cryengine if I remember is geared more towards fps games , the thing you need to have a good look at is the engine's art and asset pipeline /workflow ,what files it supports and if it has converters you need to look at what external modeling application it supports , if I remember unreal had a better looking workflow and file /modelling applications support and easier inner toolset than the latest cryengine (briefly researched long ago ,could be that my memory fails me) .


and then there's the learning curves to look at etc , ultimately its your own personal opinion and choice .