I have kept both parallel. Both have their own plus points.
Pros of Civic:
Less boring and slightly younger feel to drive while Prius overall feels a boring to drive car somehow. I like the shape of Civic and Prius body style is something I never liked. Cheaper parts of Civic. If anything goes wrong it doesn’t cost you an arm and a length. Depriciation is there but much less than Prius
Pros of Prius:
Economical as ____, extremely comfortable, amazing AC performance, solid build quality.
The worst things of a Prius are depriciation and a non tolerable flaw is road clearance. The depriciation alone will be much more than the fuel you saved. It will love to kiss bumps and breakers happily unless you put suspension spacers which are not safe as they can break and also they ruin the drive.
Lately I am hearing many many cases of 3rd Gen batteries needing replacement as well so further expense apart from depriciation and loss which was already more than saving fuel.
I have the Prius still but if at all I have to pick out of the 2 I will sacrifice the JDM quality, comfort and depriciation and get a Civic instead.
NOTE: JDM Prius fans have all the right to disagree. I have only expressed my opinion
PS: try looking into getting a Grande as well bro, soft suspension than Civic and less maintainence issues