Answer:
pros
Security levels are high
can save people a lot of money (elections are pretty expensive)
could provide more stablility
cons
dictators can rewrite laws anytime they want
can target innocent people or groups
in some and most cases you can't oppose to what the dictator says
personal rights might be restricted (in a democracy you can say what you want but in a dictatorship you can't exactly do that)
really hope this helps someway!