you could read a lot in this forum about different game engines, so if interested here is a comparison article, where even 3dgs is mentioned (in 2 sentences). not new at all (2011), but imo a relatively good work, not just copy paste:
http://www.gamebuzz.me/devbuzz.php/2011/05/20/indie-game-engines-a-recap#more80

It's not the best article, it has good points , but things are changing , Shiva 2 is coming , i find this article somewhat outdated.
But yes Unity is really the top in terms of performance features, coding ,and open editor to plugins, and easy to use.
Juts my personnal taste and tries.

Well I'd rather say that it's not a real comparison but just presentation of various engines elaborating their pros, cons and quirks. For someone "lost" in the market, articles like that in my opinion are good for means of orientation. It of course is quite dated now but at its time it gave a nice overview of most big players...

I agree.
But it lacks Esenthel a good one or other less known like NeoAxis, Axiom etc ...
But well for new comers it have some good choices to begin.