I agree that the likelihood of skunked beer is higher with cans, but there's another consideration that the other posters so far haven't mentioned and that's the difference in the volume and weight of the accumulated trash from bottles vs. cans.

We tend to go with a mix of mostly cans, but plenty of bottles as well. Maybe 2/3 to 1/3. If we're on our own, we're more likely to do more bottles and less cans. If we're with non-sailors, more likely to lean more heavily to the cans as they are less used to watching out for their beverage when the boat moves around.

It is SO much easier dealing with trash though when you have a bag full of crushed cans vs a bag full of clanky, bulky and heavy bottles.