I would choose DSR IMO.
FR-F2 is overall better than the DSR-1. But the DSR-1 fires quicker, especially if you quickswitch. And I personally think the DSR-1 sounds like absolute crap. Why bother with the tin can-shooter?
Plays League/MW2/BF4/CSGO/Overwatch/Hearthstone.
AVA is a great memory.
FR-F2 has nice range so it is useful if you are sniping from long range, but DSR has no range so if you're gonna use it from long range, the enemy is probably gonna tank. DSR has nice dmg and is pretty good to use at close range. IMO, both are good in their own place. I have both and I use both.
Ikr DRS is way fast and is ez to use but Fr is cute when using it, makes you look legit <3