I’m a little late here, but here are some numbers:

Snute (Z) v MMA (T)
1. MMA beat Snute in the ATC Season 2 Finals http://spawningtool.com/7773/
2. Snute opened 15 Hatch, 16 Pool in all 10 ZvTs in 2014. However, he has also gone for Roach aggression, Swarm Hosts, and Ultralisks out of it http://spawningtool.com/research/tags/?after_time=&before_played_on=&p2-tag=&p1-race=&p1-tag=58&p2-race=2&before_time=&after_played_on=1%2F1%2F14

San (P) v Welmu (P)
1. I didn’t find much of interest for this matchup. In 2014, though, Welmu has at least 26 San replays to study
http://spawningtool.com/research/?p=1&after_time=&before_time=&after_played_on=1%2F1%2F14&before_played_on=&p1-race=&p1-tag=286&p2-race=1&p2-tag=

Polt (T) v Revival (Z)
1. Revival plays very long ZvTs. 8/11 (73%) went longer than 20 minutes compared to 45% of ZvTs globally
http://spawningtool.com/research/winrates/?after_time=&before_played_on=&p2-tag=&p1-race=&p1-tag=374&p2-race=2&before_time=&after_played_on=
2. Polt also tends to go long, playing 19 / 35 (54%) over 20 minutes. This series could take awhile
http://spawningtool.com/research/winrates/?after_time=&before_played_on=&p2-tag=&p1-race=&p1-tag=57&p2-race=3&before_time=&after_played_on=

Oz (P) v Arthur (P)
There aren’t many replays for these players other than Oz v sOs at IEM Katowice
http://spawningtool.com/research/?p=1&after_time=&before_time=&after_played_on=&before_played_on=&p1-race=&p1-tag=380&p2-race=1&p2-tag=