The 4e laser cleric is painfully generic, yes. And gods help you if you aren't a race with automatic weapon prof and want to be a STR cleric, you lose a feat immediately to feat tax for getting proficiency with a real weapon if you don't want to be all lulz mace. Except, you know, one of those races is pretty much THE worst race for cleric period. (Eladrin. Who have yet to get any support at all for being a cleric, for that matter. Apparently none of them actually worship Corellon formally, they're all too busy being wizards. No, Seldarine Dedicate doesn't really count, because they have to take a frakkin' weapon proficiency feat to be able to take the frakkin' PP.)
And yes, radiant == astral sea blahblah, but really, it is a bit boring.
Especially since STR cleric is supposed to be kind of pants and everyone seems to play Laser Clerics exclusively. A Longsword-wielding cleric of Corellon who fights with said sword is a fairly iconic character, especially if you're in FR and thus following Corellon Larethian, but gods forbid you actually try to play it.
Crap support for obvious character concepts, too damned same-y, yeah, cleric is kind of meh.
All the divine classes are for me really. Paladin has too much baggage, Avenger is kind of 'uh', Invoker is just crappy and pointless, Cleric is boring, and all of this drives me crazy because I love making religious characters, especially priests.