Compared to UED...

I use Worldcraft to do my map making.

UED I haven't used yet so I should probably try that.

I have always liked expressing my opinion in my maps, one of the best ones I've made is called cs_swatmap. As a counter-terrorist you protect the hostages from the evil terrorists :]

There are two buildings two stories each, and each with roof access. There is also a sewer system in hopes to suprise your enemy.

In the center of the map there is an enclosed area. Only jumping from the roof gets you into this area. It's pretty decent for hiding and there are movable barrels.

I used Worldcraft to do this but I will try UED next.