Nitrazolam, hands down. Bromazolam, runner up. 2-3 nitrazolam and a bromaz would probably be sweet balance with euphoria and sedation. Nitraz is way more pleasant than any RC i've tried (Diclaz, Clonaz, Bromaz, Meclonaz, and that weird Russian one that last for days). Bromazolam is a pleasant sedation but more sleepy than pleasant (for me personally) but bromaz is a good one too.
Nitraz I can take one and go drink a few beers (4-5) and not act like an asshole or be sleepy. Feel good. and not look pilled out, which is a big +++. Down side, its not that strong, nowhere near as strong as clonazolam. A bromaz and couple nitraz might be perfect, worth a mix and match test for sure.