Could probably give more detail later if there was anything in particular you wanted to hear about - I have a tendency to waffle so I'm trying to avoid epic posts 
But, I have given birth in both the MLU and the Labour Ward at UCH.
My personal preference is for the MLU, I like the way the rooms are set up - I was in the pool room and you walk in to find the pool, futon, birthing ball, etc, so everything is there to hand and it feels quite nice.
The Labour Ward rooms don't have these things out in the room, however, you can request things like the ball, mats, and there is a pool on the ward too. The Labour Ward room felt set up more in a medical way as the monitoring equipment and such is more obvious, whereas things are more concealed in the MLU (and obviously not all equipment there as you don't have monitoring in the MLU, eg, but there is other equipment just in case).
All rooms are spacious and en suite and you can have a fairly 'lazy' (!) labour in the MLU or an active one on the Labour Ward. Labour Ward doesn't mean lying on your back in stirrups (I've said this somewhere on here before, I think I was on my side, half off the bed, one leg in the air or similar when I gave birth on the Labour Ward
Baby and I were both being monitored so couldn't go too far!).
The main thing I can say is that the MWs across both, IME, are great, and I had great experiences in both. I would opt for the MLU because it's that bit more comfortable IMO and the Labour Ward isn't necessary for low risk and if you don't want an epidural, but when I had to go to the Labour Ward due to risks that presented during labour it was all good, I still had the same support and was very happy with everything.