Switching from Yahoo Photos

For users of yahoo photos, you know that it is shutting down soon, and that they can transfer the files to another photo sharing service. I can choose from:

Flickr
shutterfly
photobucket
kodak
snapfish

What service should I choose and why?

Thanks!!!

I like flickr out of that group (not having used shutterfly or photobucket).

I also use Picassa and have enjoyed that.

How many pics do you have? Any chance any of the services has a very high/low storage limitation? If that is a potential constraint I’d explore that if I were you.