Just buy a sonata. There is no comparison. The moon roof looks great. Sonata has more cabin space. RS guys just talk about rolling torque which is ridiculous.
Dont forget that civic was not sold in middlewast because of accord and only sonata can compete with it. Civic RS only have ADAS functions. if you dont use them, forget it. The interior of civic RS is also not very appealing. I would vouch for elantra hybrid or sonata 2.0 anytime over civic RS. yes, elantra hybrid is also placed a bit above the required price tag but still way better then civvvac.