Should I have veneers or crowns on my two front upper teeth, which have had erosion, have "slits" in and are sensitive? (Photo)

My two front teeth have slits in and aren't smooth, due to drinking fruit cider (glass bottle) during my past university days I believe, along with fizzy drinks over the years. I don't like the way they look. They are sensitive, all other teeth are fine however. As well as the slits in the middle, they are a bit translucent on the ends. Would veneers or crowns be best suited to make them look better? Would it also look ok only getting these two done as its costly to get 4 or 6 done...