Definitely landing. Btw I don't buy that idea about crashes on take off being caused by engine failure. I can only think of a very very few crashes have happened like that. Engine failure on the runway? Midwest Express DC9 (Milwaukee), El Al 747 (Amsterdam), none others I can think of...and both of these were in the climb (the AA DC10 at O'Hare doesn't count cos the engine worked fine, even after it left the wing due to structural failure).
So many crashes on landing. You can include almost all weather related accidents, almost all Controlled Flight Into Terrain (CFIT) accidents, almost all collisions, and much "pilot error".
fly Saha Air 707s daily from Tehran's downtown Mehrabad to Mashhad, Kish Island and Ahwaz