In terms of pure VALUE, when it boils down to it, normally the regular holo version is more valuable (in a monetary sense). Skyridge's crystal cards can be a perfect example to this, if you look at something like Crystal Charizard. The reverse usually sells for less than the normal holo version. In other cases, like the Crystal Guardians Delta Charizard, the price of the normal holo and the reverse can be pretty close. It just depends on the kind of card really. (See something like Legendary Collection too, the reverses are the most valued cards in the set).
I really couldn't say which one I prefer personally, since I collect master sets. It usually depends on the era for me, like in Black and White I 100% prefer the normal holos since tinsel is the best pattern, but in Sun and Moon I've gravitated towards reverses.