I love Exo Terra because they have finer gradations of bulbs and post very detailed information on their website regarding spectrum and placement distance for various levels of UVB. I think ZooMeds are fine to use, but I prefer having all the details.
I know someone who measured the uvb content of this two brands, and the zoomed was much better. The exorerra tubes lost their uv radiation much faster than the zoomed. And the newly bought exoterras are also have a lower uv transmission than zoomeds.
I use Sylvania light tubes. Best price, best quality.
Zoomed for sure. Between the two brands the Zoomed bulbs (like the Reptisuns) output more UVB fresh out of the box and last longer. But I suppose it depends what creature you're lighting, their needs, and their enclosure.