so like all of us i sometimes check other engines.
nice features , great editors..... fast workflow.
But with acknex I know how I make the player look at this point or do other things.
When I start coding in Esenthel, Leadwerks, Neoaxis, DX-studio Sauerbraten....I had to hunting numbers through matrices for rotate something.
No ... at this point I remember Acknex and quit my exploring