I read that link which give advice on features to consider. To sum up:
1) 3 leg sections instead of 4, unless you really need the tripod to shrink for travel.
2) Carbon Fiber or aluminum. CF is half the weight and twice the cost. CF also doesn't feel as cold as aluminum in chilly weather.
3) Height-if you want to take pics at eye level, choose a tripod that extends to 6" below that. I presume this does not include the center post. Ground level shots? Than a tripod with no center post.
Carbon fiber is just too expensive for me. I think all these tripods have 3 leg sections. The Vanguard has a "minimum" extended height of 52 1/8". There's maximum height which I presume is with the center post extended. That 52" is plenty for me and that's without the ball head.
After seriously considering your recommendations and mixing in my needs, the Vanguard is going to be the one on my xmas list. I'll keep you posted on how I like it.
I almost talked myself into the Manfrotto, but I won't even use the tripod every month. I've gotten by on an extremely cheep tripod. The Vanguard will seem like I'm moving up to a luxury brand.