Personally, and I would say that I'm qualified to to give my opinion here since all we do is voice and data, I would stick with Leviton, Panduit, Siemens and a couple of other top of the line manufacturers. All keystone jacks are not interchangeable and it's a real PITA when you have to add a jack to an existing plate and the jack you use won't fit the plate. Also, the "tool-less" aspect bothers me.
Everybody offers the same color selection. Normally the voice jacks are the same color as the plate and the data jack is orange. So unless you have some compelling reason, all those colors are meaningless.
Right. Leviton Quickport is all we use. They all look the same but not all are the same dimensions and quality is also a big issue. You don't want to go back after the install and move desks because the jack won't work! Generally you get what you pay for.