Please list them, looking for inspiration beyond the obvious
To answer your question I would like it to be noob friendly. If I cant install it and make my game with ease then its not for me. I also kind of agree with warren. The more tools you have to do the job the better it is. I've noticed a lot of new Game coding languages now coming with built in tools for editing all sorts of things for a game wether it be models, terrain or special effects.
Looking forward to vivid2 though.