I'd probably choose the brymen, bad experience with a uni-t, I wish it still was working as I found it useful for ball park stuff, it had L measurements which was the only way I had to measure that without setting up a rig. All of those around.
Brymen would be handy for me to carry one around with the extra dmm functionality, I don't quite get the earth continuity function, it's just a high current, low resistance function?
Fluke would give the most confidence out of your measurements for the years to come, if you don't need an all function in a carry out device and just would be sitting in the lab around a lot of others dmms (and you can afford and justify the expense)
JS