I've got the ARB UVP's on my 2012 ST. They are an extremely well made looking bash plate, bolts are hidden and easy access points for changing oils, but ....... for some reason on mine, could be the variations in models of these thai and spanish navs, they had to use a flimsy adapter bracket on the front plate to the bull bar to make it work (and I mean flimsy!). I ended up removing this bracket and fitted a 70mm x 20mm x 2mm thick square tube in its place instead. The plate also sits too close to the corner of the radiator for my liking, thats also why I replaced that crappy bracket. The front plate has copped some decent hits and seems to be holding up well. I've read elsewhere of ppl removing this bracket and fabricating something else in its place as well.
Also, the ARB transfer plate utilises the 6 bottom bolts to the transfer case for mounting. I reckon if you are to copp a decent hit to this plate it could still damage the transfer, imo a bash plate should be mounted off chassis points instead for it to really protect the parts above it. My transfer had also developed a leak recently, luckily it was noticed very early. Ended up being two loose bolts, could have been from the install or the fact the factory bolts were utilised for the install, as the plates are 3mm thick, the bolts have 3mm less meat to bite onto. They have since been re-torqued to factory settings and is all good (fingers crossed).
My mate has the brown davis, and they look real decent as well. Not sure if you have to remove anything for oil changes though.
So all in all, after paying good coin for the ARB and the amount of time needed to modify things to make it right. I would probably choose the Brown Davis plates had I the choice again.
Hope this helps in your choice
Mik