That third one appears to be kind of a compact plant all the way around, from it's quite compact inflorescence to it's densely populated, long narrow foliage. Who says Trumpets have to be breed tall to look good! This one could even be grown as a patio plant! I'd be interested in a couple scales or bulblets if you do lift them next Fall.
By the way, I've been meaning to tell you---remember those 6 little colored bulblets you sent me a couple years ago? One of those had nine flowers last summer. I'd have to pull records for a name, but as I recall, it would be the little black and white bulblet--the flowers were orange.