both games are pretty awesome. red dead has one of the best leads in recent memory, mass effect has a great supporting cast. both are meaty games that will take you a long time to complete. it depends on what you're into. if you're a big fan of rockstar games, get rdr. if not, get me2. i slightly prefer rdr but you can't go wrong.
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ICON:
I'm pretty serious about chocobos.