I am very familiar with Mazak machine's (from 1987) and have been operating a Amada LC2415A and a LC3015B for some years.
About Trumpf a cannot tell a lot, everybody is bragging about how good they are, I did some service on a L3030 and I wasn't impressed by it.
To advice anyone buying a laser one should know more.
-What accuracy is needed?
-What's the quota needed to be cut per year?
-Is it essential to cut multiple jobs unmanned?
-Do you need a new machine or a young occasion will do?
-What's the floorspace available for the machine?
-What kind of floor do you have?
All in all I would advice you to get in touch with a local consultant who has the knowledge you need.
Having said all this I would still go for MAZAK!
Cheers and good luck with the choice on hand!