128-bit Chameleon Protocol (443)
Chameleon is great in China, when I have a reliable internet connection. Unfortunately, since my job requires me to be on the move a lot, connecting to anything other then PPTP just doesn't happen with the Shotty WiFi of most hotels.
Furthermore, when not traveling for work, I use VyprVPN Router @ home, and since I am still in China the scrambling of metadata does wonders for my browsing, however, I'm a gamer and the increased overhead of 256-bit encryption hurts my multiplier experience.
128 is more stable for streaming .