Many will say Xbox or playstation, but either answer will be based on bios and not actual things that come into play for example: console features , games , and life of console. I suggest looking into both systems before purchasing to see specs and games for each system . If you mean computer I suggest making your own.
It's a matter of opinion and you'll get the fanboys answering and arguing about it very easily. The only way to find out is to just try yourself. Or take a look at all the exclusive games that are available for each system and see which would be more interesting to you.