Have both, but my daily phone is N9.

It has (for me) most intuitive way of handling, perfect size for my hands, can't live without Billboard app, heavy use of NFC (I have black and my GF cyan 16Gb version and we exchange stuff A LOT), have all essential apps for my needs, better integration of apps into system (for ie. Fahrplan can add journey to calendar, SIP integration, ...).

Jolla has also some bright sides: faster battery charge, with Android integration I now use c:geo for geocaching and battery lasts forever, have data-only SIM and thanks to better tethering (way lower battery consumption and protocol, that any device can use) I cover (almost) everything.

I also have N900 (with no broken USB [yay!], yet , but functions only as mail reader and as music player, but I keep addressbook in sync just in case I need it as phone