My UPO has chief AR, it's very strong and almost colourless, you can see a pale greeny blue tint in certain angles and it's very focused, not over the entire crystal if that makes any sense! I've handled a UPO with k222 double AR which was very strong with a deep blue/purple tint, this was more gen-like in appearance (judging from photos, I've never handled a gen UPO).
In all honesty either Taka's or Chief's AR will be a big improvement, I haven't seen Taka's AR but if he offers a blue tint then that might be closer to gen, but Chief might be able to offer that too.. I think with Chief's most people are blown away by the sheer strength of it, in some angles it really looks like there's no crystal on the watch!