I like the Line 6 DL4 because of the Boss Space Echo and Memory Man settings. I don't like the big footprint and I don't want the looping capability. And I don't want a delay that can do many different sounds that I'm not interested in, I just want it to do one sound exceptionally well. So I've been shopping for delays too. Here's what I am interested in...
AD4096 - sounds terrific, expensive. Has 2 types of delay which you can combine. Momentary runaway feedback switch, expression pedal input.
Strymon El Capistan - possibly best all-around tape delay, expensive. Momentary runaway feedback switch, expression pedal input, tons of tweakability.
Deluxe Memory Boy - has effects loop for your trails. (Want to add your 12-step phaser on your trails?) Expression pedal input.
Electroman - has effects loop for your trails. Momentary runaway feedback switch.
Boss Space Echo - the delay for Portishead sounds, many dub reggae LPs. Great if you want that flavor. Momentary runaway feedback switch, expression pedal input.
Freakshow Digilog - Momentary runaway feedback switch.
Catalinbread Belle Epoch - Tape echo style like El Capistan, but less features and less expensive.
In the end, I wound up buying a Belle Epoch (it's in the mail). It seemed to have a good balance between price, size and sound quality. But no momentary runaway feedback switch, and no expression pedal input.