What are /r/ResetCollection's favorite Products & Services?

From 3.5 billion Reddit comments

I use this version of Mame4Droid (free from play store) and it seems to run the majority of ROMs I have thrown at it. Plus the dev continuously updates the app:

https://play.google.com/store/apps/details?id=com.seleuco.mame4droid&hl=en_US&gl=US