I agree, it is confusing. I went with the Hood Mountain form as I grew up in the mountains shadow and all the locals all refer to it as Hood Mountain, as the name of the park and a plaque on the summit placed by the Hood family indicates. Plus it reduces possible confusion with the Mount Hood. Also, the previous entry on SP was Hood Mountain. However, I do like getting things right. Any suggestions how to rectify it?
If it were up to me, I'd change it to Mt. Hood because I like the officiousness of the BGN. It's also the name you'll find on topo maps and google and peakware and other online resources. But your reasons are good, too (except the part about confusing it with the other Mt. Hood - that's a generic problem with many similarly named mtns, but probably not a good reason to change one of them, imho). In the end, it's not up to me because my lazy ass didn't make the page, you did, and you already put some thought into the issue. So I'd suggest doing what *you* think is best. If you decide that what you have currently is most appropriate, I'd suggest adding a short note about the name so you don't get more of this same correction in the future. :-)