Tough decision! I didn't vote because I'm somewhat in the process of making the same decision. I've looked at all the bumpers you posted, in addition to many others, and I just cant decide on one. Like you, I didn't really want to cut the OEM frame horns, but the more I shop, the more I feel I'm just going to do it; I feel that all the bolt on bumpers just look too awkward from certain angles and there's no argument that the approach angle from a frame cut bumper is significantly greater than a bolt on. I originally decided on the LGE/CTS bumper, but I've changed my mind since. Right now, I'm leaning towards the SDHQ that requires that the frame be trimmed. They do make a similar bumper that's bolt on, but again I feel it just looks... ummm... not quite right... like the other bolt on bumpers, like the skid plate section is too wide and protrudes too far from the front of the truck at that width because of the factory frame horns.
BOLT ON:
CUT FRAME: I would get it without the top light hoop.
Not to discredit any of the other bumpers or their manufacturers, but I know the SDHQ quality, fit/finish, and construction are superb... they are also constructed of 4130 chromoly and fully TIG welded. I'm pretty sure all the other bumpers mentioned thus far in this thread are constructed of mild-steel and most, if not all, are MIG welded. Taking price and construction into consideration, I feel the SDHQ bumper provides you a lot more bang for your buck as it's right in the same ball park as far as cost goes.
I have no affiliation whatsoever with SDHQ and of the three bumpers you've included for voting, today, I'd probably choose the Saints Offroad Bravo. In addition to it's more aesthetically pleasing style (opinion), I feel it is the most well constructed of the three, but I haven't seen any of the three in person.
Good luck with your decision and let us know what you choose.
EDIT: I just looked at the results and see that the ADD bumper is leading the polls. I find it kind of funny, because that would be my last choice of the three options. I know the ADD Race doesn't use them, but something about those dimple pressed sheet metal pieces on the ADD Stealth and Venom bumpers just really turn me off. Oh well, everyone has an opinion and ultimately it's your truck and I'd be lying if I said that I didn't care what other people think of my stuff... at least a little.