Personally, I would choose Merida ... and never Valencia unless you are into the middle-class thing, then yes. Merida is a "for all" type of place with lots of artists, night life, universities, calm, green, and somewhat cool at night ... buut far from any real beach (about 12-16 hours by bus). Valencia is hot like hell and sort of flat and desert-looking, one of the main industrial towns and lots of "middle-class" whilst the poorest live in crappy conditions along the outskirts where the industrial areas are ... but it is only about 2-3 hours from a good beach. The rest of the country is a matter of outlook and personal taste ... depends what you want ... but basically Merida has it all and is close enough to all sorts of stuff except beaches and deserts (like Coro). Coro is dry and very hot, in a desert basically but close to the nearby mountain ranges and good beaches ... but far from the Andes and the fertile lands. I live in Caracas, but in a barrio, which is far from the polution and heat of Caracas and I live in a small villages in Tachira, in the lower Andes and at the border of Merida and Zulia in the flat green agricultural area, My favorite place of all is Barlovento, around Caucagua ... but that is a different story ... and a very different lifestyle ... tropical rain forests, thick greenery, and Blacks mostly, descendents from the slaves ... my preference in style. Good luck ... Venezuela has everything you might like to find ... but scattered about in different regions.