I travelled to Europe in 2011 via DXB and hope to again in 2015.
I don’t fly at night, so I planned a trip which was all daytime flights and included two-night stopovers in Dubai in both directions and one-night stopovers in Singapore.
PER ->SIN on QF and SIN -> DXB -> FCO on EK and return LHR -> DXB -> SIN on EK and SIN -> PER on QF. This amounted to 4 days in transit, with three nights sleep and no jetlag. We would probably only stay one night in Dubai on the way to Europe next time, but possibly two nights on the way home. This itinerary was cheaper than flying EK all the way, even though the PER -> SIN return fare was $1200.
EK is one of the few airlines which have a morning departure from LHR or LGW. This seems the critical flight for an all day time flights itinerary. I could possibly also combine MH and QR with stopovers in Doha and Kuala Lumpur.
My daughter and I felt very free to move about Dubai, catching the metro to the different malls etc. We also hired a car and driver for a day. The only place my daughter felt uncomfortable was the gold souk, as we were the only women in sight.
We found the bag drop time in DXB to be very long, with a number of disgruntled passengers for some human drama. There was a new terminal (5?) being built, so that may have improved things. We did manage to get exit row seats for 3 of the 4 EK flights by checking in the previous day when in Dubai and very early at LHR.
Our trip was mostly in January, so the weather was perfect.