i really liked how the show progressed over the 5 years, even though almost everybody ended up exactly where they started. Angel, fighting for the light, Gunn fighting vamps, Wesley using his Watcher knowledge to fight Vail, Illyria becoming Fred. Spike was the only one to be completly different to his first appearence in Angel WAY back in 'In the Dark'
i liked tha fact that, on his own show, Angel's first fight was in an alley, and so was his last...well, actually his first APPEARENCE to us fans was in an alley, back in WTTH, which is interesting.
i agree with everyone when they say they liked that the show became more family centered, and even thoguh i enjoyed S4, mostly 'cause of Connor, i didn't like Cordy's descent into evil. i thought that destroyed a character that i had grown to love deeply. but i was glad for 'You're Welcome' for the little Cangel moments, even though they did end up killing her off.
i loved that fact that Connor finally accepted Angel as his father. the scene at the elevator in 'Origins' is one of my fave scenes ever. and when he came back to help Angel in 'NFA' i was bawling like a baby!
compared to 'City of...' which was confusing and purposefully misdirecting, showing us exactly how the charcters were feeling, 'NFA' had a clear purpose, they all knew what they were doing, and they did it without question, even though they knew that they were probably going to die.