>>21421616 (OP)UHT milk has a disctinct taste. Not better. not worse, it's its own thing.
It has a "cooked" taste. During cooking the lactose partly caramellizes, which leads to this milk tasting slightly sweeter than fresh milk.
Many people actually like this distinct cooked taste. Think UHT milk without the sweetness and without that characteristic aftertaste and you pretty much are there with fresh one. It has less taste in a sense, but is very refreshing. It#s also slightly thicker than the UHT one, so you can feel the fat going down your throat.
Both are good, go by taste.