I agree that Photos and Gallery are both fairly terrible.
I hate how, if you transfer a folder from your computer that includes a sub-folder (say, a main folder called 2012 with a sub-folder in it called Bob's Birthday), the sub-folder get yanks out and put out on it's own, with no reference to its original location. At least iOS's Photos leaves the pics in the right main folder.
I've looked at QuickPic and its equally problematic and I'm far from throwing all my pics into Dropbox (or the Cloud in general) for access from there or re-tagging 700+ pics so that it fits Google apps. No real alternatives out there for me.