Metal Halides vs. T5's vs. LED's vs. Ecofriendly Bulbs Which is better?

[Northvan]

We are thinking of switching from Hamilton tech MH/T5 2X250 with Geismann 14000k, to Kessil 350's, running on a drilled 90 gallon, but we don't yet have an opinion on which is better, since we havent tried it yet. We are running 2x150 M/H on our 72 gall bowfront, and it is underlit. Might switch both. I ran LED on a small quarantine tank & liked it alot. We would LOVE to see someone elses tank with Kessils or something similar before we put out the cash. And/or hear opinions from people who have tried or seen both.
On a side note, our first salt tank was T5's only, and I liked the colour they gave, but hubby wanted the ripple effect of M/H.