ok, here it is, straight from wookieepedia:
The Executor-class had over 5,000 weapons emplacements, including turbolasers, assault concussion missile launchers, and ion cannons. Since warships could direct all power to their energy weapons, the Executor-class had at least 100 times more firepower than the Imperial-class.
plus:
A minimum of 144 starfighters were carried onboard Executor-class vessels; but the massive hangar could hold thousands. In addition to fighters, the Executor-class also carried a large number of landing craft, dropships, ground armor and two prefabricated garrison bases.