Runway better than grass:
https://www.youtube.com/watch?v=CbZlgHofgrI
and if you have both engines running (and forget to lower the gear):
https://www.youtube.com/watch?v=bsqtWSIALXU
I would find the water landing a lot scarier but I guess the runway/water choice is an individual decision like anything else. Would get a lot less media attention on the runway, and if you had to pay for salvage/aircraft removal it would be a lot cheaper on the runway.