Guan Yu for quite some time and been playing him in every role I can get my hands on. (Even going as far to try and snag jungle since I sometimes love to play warriors in the jungle.) and I've seen how far he has kinda progressed since his first incarnation. I still have tons of fun managing to get a multi-stun on people with the horsey or managing to just barely escape using it. In other news I've also come to terms of how bad he is in a few certain match-ups such as 
Bellona or 
Chaac but saying that he can take on many others.I haven't really got anything more about Guan Yu but he is a fun warrior to play.
Happy Hunting,
-Sods
kindve like bellonas hammer
wait does her disarm cancel taullo assault
Nah. Guan's worst matchups are against people who can do that though, like
max your 3 first, then it depends if you want to go more supportive, but i usually max the 1 second.
cancel the horsey when they start getting close to the tower so you can kill them before they can.
about when facing bellona, use your two when she lands the second hammer smash, so it wont hit you, and bait out her disarm before you use your 3.
And thats all the help i can give you about guan in the jungle, hope it helps.