Pretty much all the same. Just make sure you get the enteric coated form.
I just bought some last night at the grocery store (they had buy 1 get 1). The thing I noticed is that a lot of the bigger bottles had more pills, but less for each pill therefore not as good of value. Ended up with ones that were truly 1 pill per day. Also, trying a trick from Gritty Bowmen and keeping them in the freezer to reduce bad breath. They say "no burp" on the bottle, so I don't know if that's something special or not.