¡Hola! Fernando! Well, that’s a difficult question to answer, to be honest. I’m from Europe (at least geographically), so I prefer Peninsular Spanish (from Spain). However, some of its features -pronunciation of c and z as th- in my opinion make it a little less melodic than Mexican or Colombian Spanish. So, I’d say I prefer Peninsular Spanish when it comes to vocabulary and Mexican or Colombian Spanish for accents.