IRIS vs Mopidy - Let's debate!

I’ve just installed Mopidy server for the first time ever.

I now need to install a web client, and from my research it looks like IRIS and Moped seem to be the most fully featured clients.

I was wondering if anyone could give me a brief over view of the two clients?

Do they do the exact same thing or do they each have separate / different features?

Is one considered ‘better’ than the other?

Is one more popular than the other with Mopidy users?

Any help or advice appreciated.

Thanks!

P.S can anyone tell me is it safe to install multiple clients at any one time?