I SJ in Prolite front boots and XC in Prolites all round. Can't stand NEW boots, especially those awful fluffy ones (and especially fluffy ones for xc!). I would have liked to try the Dalmar air-cooled boots if I hadn't got Prolites.
I use NEW boots for everything. Not the fluffy ones though bu the Airflow competition type with tendon guards. Are fantastic. Light, easy to clean and great protection.