Can hypothetical income of 12% on cash is better than RE game?

[Ken Singh]

If, hypothetically I can earn, for sure, from my mutual funds or other means a rate of return 12%  annually (fixed) on my invested cash and I can easily reinvest it for compound interest, would you prefer RE efforts with the game of appreciation, depreciation, renting, condos, tenants, fixing, etc. or you will be content with this return. May be for experienced people, what is your overall rate of returns in say 5 years with all ups and downs? Thanks!