Can anyone give some tips for combat? I notice I often have a hard time getting a combo to last like than x6 and don't always counter in time. Never had a chance to play Arkham Asylum, so having a little difficulty.
The X (or A) button to vault over enemies is your friend. It allows you to avoid their strikes, while still continuing your combo. Also, double tapping L1 (LB) to batarang is a good way to quickly buy some space when surrounded by thugs.
Remember Batman has a ton of moves between the face button combos and gadgets. Mix them up and pause if you have to to collect your thoughts.