Minecraft Vs. Roblox

Should I keep playing Minecraft, or is Roblox truly the better game of 2016 and 2017?
Some pros and cons to look at:

Minecraft
Pros: Complete sandbox, allowing infinite possibilities for creating literally anything; relatively friendly community overall, costs less than Roblox in real money, lots of ways to play.
Cons: Massive amount of hackers, griefers and chat abusers in the Multiplayer servers. Gameplay is starting to get a bit old. Lack of weapons, especially guns. Whether the blocky graphics are good