So I grabbed a Flashback and an Eventide TimeFactor.
I decided to try the TimeFactor because it has selectable line/instrument input, selectable line/amp output, and a clipping indicator with level adjust. Which is what I need for using in a loop. That part of the pedal works very well. But the thing was just too complicated with all the presets and dual-functions of every knob. So I returned it. Seriously. Way too complicated. I'd spend more time tweaking and fucking with settings than playing.
The Flashback, on the other hand, is super simple. The killdry function lets me use it in the parallel loop of my VH4 quite well and the input automatically knows if it's instrument or line-level. So it's a keeper. But at the same time, its functions are almost too limited. For example, you can't adjust the modulation. I really only use the Digital/2290, Analog, and Tape modes. I'm keeping it. But at the same time, I wonder what an El Capistan or Timeline are like.
I don't see anything in their manuals about line-level vs. instrument level. I like that the Timeline has a display where you can set a specific delay time in milliseconds. And I know the El Cap. is a dedicated tap delay and the Timeline is more versatile, but more limited for tape stuff. Just don't know what I need. I'm all set for now with the Flashback. But I kinda got the delay bug and want to try one of the Strymons. The downside here is that I don't think either unit has a killdry.
Same thing with the Chrono Delay. It seems nice, especially with the subdivision switch that makes it super easy to get those galloping delay sounds. But there is no killdry.
The Nova Repeater, however, has all of those functions (minus a display) including dedicated instrument/loop inputs.