Occasionally -- used to be around once a month but since a couple updates ago it's been around once a week -- the game doesn't crash but my entire computer locks up, forcing me to manually reboot by hitting the reset button. No rhyme or reason when or why this happens, but hey, could just be my setup.
Many times my client has crashed porting into the desert, which has long been a known problem and doesn't bother me since I mentally prepare every time I port to desert that I'll probably crash. (Happens maybe 20% of the time.)
Never, in all my 17 months of playing, has the client ever just crashed while running around in a quest. Just now, a mere 16 hours after the hotfix to correct crashing issues, my client crashed four times (4!) while running epic hard bigtop. Super annoying. Not a loading screen when going into the tent, just running around playing normally. Crash. Crash. Crash. Crash.
Considering the hotfix also wiped ship buffs while claiming to fix the bug that wipes ship buffs, that's 0-2.