XY: aim vs. Hill - aim has been on fire lately, but as always, the threat of going straight to youtube will motivate Hill to bring his best performance, and perhaps even his best trained Excadrill.
XY: Sinclair vs. Blue Star - As unfortunate as it sounds, I don't think a BW player such as Blue Star stands a big chance against the almighty Jeremy Jumpluff...
XY: dragonuser vs. KratosMana - Tough one. I'm giving the advantage to dragonuser right now because he is undefeated in 5 games, but it could easily shift if KratosMana brings Scarf Mesprit.
XY: gr8astard vs. Destiny Device - Destiny Device has brought Sand with Excadrill twice, and as seen in gr8astard's last round match, he does not fare very well against it.
XY: bro fist vs. Dekzeh - I think this is the best match of the round. bro fist is both a legend and a legend slayer. Dekzeh could definitely take it with his unconventional sets, though.
BW: CTC vs. yan[sogeking] - While his opponent will use Stealth Rock this round, I think CTC has him all figured out already and will win thanks to his optimal builds.
DPP: august vs. Hantsuki - aug hasn't played enough XY to know Quagsire isn't always Water immune
ADV: BKC vs. DracoMalfoy - A highly anticipated match in a pure-skill-and-trappers tier, I think BKC will win because the good guy always does :]