I have all these speakers side by side
HK Nano
HK Elements
LD Maui
Yamaha DXR
Mackie DL series

I love the flat response of the Elements, it works in everyroom with out a problem.

I think the Yamaha DXR series is the best powered for the money, the QSCs are about $150 more, but the NEXO based Yamaha's are great. I have a set of DXR12's for monitors on a Yamaha DTX900 electronic kit, and it moves allot of air, and sounds great.

The Mackies take the least amount of space with the Coax design. They have a great sound to them. They are extremely easy to transport because of their small footprint. The eq / xover / mixer section is very helpful in a bunch of situations.

I think, if you have the room and money, it's the HK Elements.

If you lack space but have the money, go with the Mackies

If you have space and a not the biggest budget go Yamaha,

Give me a call, I've used all of them in live situations including single performers to full band set-ups