Using QuickPic for awhile now. It is also my go-to video player app. I view it under the Gallery (list) setting similar to iOS but with a black background. What is great is you can hide files as well.
My fav version of QuickPic is still v2.8.2. The later versions have this "zoom out" animation which delays it for a split sec when you press the back button. I dont like it. I prefer the older version where when you press back, there is no animation and just instant to the next menu.
On a side note, MovieTube + TubeMate app used together is just freakin' awesome! Just downloaded a few movies the last two days like Jobs (Kutcher flick) and Despicable Me 2. Got The Matrix in 720p. Havent seen it in years. Using those two apps mentioned above along with QuickPic or MoboPlayer for their mini-player just works great together. And Bluetooth transferring the movies to my older Android phone works wonders. Love Android's FREEdom! ;-)