Gundam is the biggest mech franchise out there.
The original
Mobile Suit Gundam aired in 1979, while the most recent offering (excluding spin-offs),
G no Reconguista, ended last season. And the only one I've watched fully is
08th MS Team. So that's something I feel I should do something about, especially since I really enjoyed both that and SEED.
I avoided longer series like the plague, until I finally took the plunge and started
One Piece a few years back. That's the longest thing I've watched by far, with
Urusei Yatsura and
Hunter x Hunter (oddly enough) a distand 2nd and 3rd.
Naruto is also on my list of series to try and watch this year though, figured I'd see what all the fuss is about now that it's over.
Unlimited Blade Works is very different in style to
Fate/Zero - it focuses largely on just two master/servant couples, instead of telling the story from the perspective of a wide range of characters as Zero did. The masters are mostly high school age, and lack the life experience and interesting backgrounds that those in Zero had. The series' pacing is also inconsistent, but at least the fight scenes (when it does eventually get around to them) look amazing. It's not terrible, but go into it expecting it to be like Zero, and you be left disappointed.