What is the best?

Difficult to say. A friend has a cart much like these and not only are there mixed Jap/US/EU games, one or two have a few mapper issues and are garbagey. Thankfully not a small price to pay, but might hurt the purist in you.

Also hard as hell to choose but i'm gunning for the left one, cus I fucking love me some Super C. Really dig Power Blade 1+2 also, and you've got more or less a full set of rad Natsume action games.

>>4142945
one is for famicom and the other is for nes so they aren't exactly the same thing

>>4142945
Why are those games marked with SRAM use?
I thought battery save and SRAM were the same thing.

>>4142945
Right is better for sure but left does have games right doesn't that are worth having like Shatterhand, Cocoron, Splatterhouse and Dragon Warrior (?!).

>>4143272
some games use the SRAM but don't save

the cartridges have only one SRAM chip that is shared for all games

so if you're playing Zelda for example and you save, the save file will remain in SRAM until you open another game that uses the SRAM and overwrites it, even if that game doesn't save