With the short put you pay only one commission.
With the covered call you may make an easier emergency exit, if the market goes south; selling the futures (or ETFs) which have higher liquidity and volume than put options.
Any other advantages/disadvantages?
Personally, I HATE covered calls. I just prefer short puts as opposed to CC's, but that's me. One simple sale. It seems the covered call strategy is for people just dipping their toe in the options water.
Also, it is no harder to hedge a short put.