i have both . have 2 boards and they are the delays on each.if i had to pic i'd say the mljr is my preferred delay,like the delay a little more but the wampler has nicer modulation. these are ever so slight.in live situation u couldn't tell the difference.
I have the Wampler FTE but haven't played the Memory Lane Jr. The Wampler sounds freakin awesome as a lead tone thickener and I love its modulation on the trails but its downfall is that it doesn't have subdivisions. If you have a need for those then I would look at the memory lane.
I had both at separate times and unfortunately the mljr was long enough ago that the only thing I can really remember about it was that it was uninspiring.
The wampler I had up until late fall of last year. Very musical but still lacked that "it"quality.
If I had to do it all over again and could only choose between those two I'd probably go the wampler route again. There was an attraction to it. Something I couldn't grasp about it. But still something not perfect about it.