I'm a big Vanguard fan, we have four in the family. But the Vanguard .300 WM only comes with a 24" barrel. If I had a .300 WM it would definitely have a 26" barrel. I may be in the minority here.
I like the Vanguard/Howa too. Years ago, I had one in .338 WM that I foolishly let slip through my fingers. I currently own 2 .300 WMs: a trued Win M70 with a 24" Douglas Premium barrel and a tricked-out Rem M700 with a 25" Krieger barrel.
Frankly, I prefer the 24" barrel. It carries well and balances better than a 26, and the 60-70 fps velocity difference between the two is irrelevant, IMO. But like Boo says, it boils down to individual tastes.