XMR is more profitable than Aeon via whattomine.
XMR 3700h/s 5.47$/day
Aeon 7400h/s(as you say, Aeon hashrate doubles XMR) 4.25$/day.
Yeah it is now, but it changes every day, the AEON diff is changing a lot.
I also like SUMO it's almost same profitable as Monero sometimes better, I've update my Monero guide with that. In november it will be probably even better, because it will increase block reward from 32 to 36.5 SUMO.
For AEON hashrate you can CPU mine, for example G3930 is giving 130H/s for 1 thread that helps a lot. If you have some bad ass CPU your hashrate will be amazing, even if you go for Pentium you might probably have something between 150-200H/s per thread.