Budget? You can't get all 3 in one tweeter so you have to compromise one of them. Sound, efficiency, price.
For budget tweeters, SEAS Neo Aluminum and LPG 26NA are a good place to start. Alpine XT19 is very nice as well.
I think the peerless HDS tweeter is an absolute steal, but you have to be able to fit a large format tweeter. To get similar sound from a compact dome, you'll be looking at over $400.
In the $200 range, I like the Rainbow Cal26.