As far as good brands out there; Ushio, XM, and Phoenix make good halide bulbs. ATI, UVL, and Geisemann make good T5 bulbs.
Kelvin really depends on what you like. A higher K will be more blue, lower will be more white/yellow.
PAR really isn't advertised, and is usually something you measure yourself. There are also many different factors like brand, ballast, reflectors, etc to take into account. As long as you're using good stuff, it shouldn't be a problem.
-Justin