These listed weight capacities don't mean a great deal, and shouldn't be used as a basis of comparison.
I owned a Vanguard aluminum tripod, and wouldn't buy another. Not very stiff. Of course that varies, I didn't try every one of their tripods! A medium-range consumer tripod, not the worst, far from the best.
In the days I owned aluminum tripods, I was much happier with Manfrotto in general. Well designed for what they are, a high-range consumer or low-range plus pro tripod.
You've probably read how you should save your pennies for a medium-range carbon fiber tripod at least. Those people aren't wrong, and I have been through a lot of tripods getting to true pro gear, but I'm not sure I would have done anything different when I was buying the non-pro stuff. I've given a few Manfrotto away to family & friends, I'm sure they're getting good use out of them!
From the upper left corner of the U.S.
Photos, Video & Pano r us.
College and workshop instructor in video and audio.
70D, Sigma 8mm, Tokina f2.8 11-16, Canon EF-S f2.8 17-55, Sigma f2.8 50-150 EX OS, Tamron 150-600VC. Gigapan Epic Pro, Nodal Ninja 5 & R10.