Valium: easy high, 25mgs = happy days; for about 3 hours.
Pregabalin: Twisted drug. Fun for maybe the first few tries. Nightmarish, shitful and brain cell destroying overall.
Ativan: No results. Zero euphoria. Felt like eating a sugar pill.
Temazepam: black out
Clonazepam: the BEST. But ONLY if you're serious about controlling anxiety and not after any euphoric high; I've never taken enough to get a buzz, but am on 1mg in the morning and 0.5mg in the afternoon. My longstanding, seemingly never ending anxiety has vanished.
Clonazepam all the way.