I agree seperates provide greater flexibility and separation, but I have always liked the convenience of a good IA. As such I have owned both, like many others, I moved back to an IA, Viva Solistino, and have no regrets....its a fine IA and if I ever wanted to add a seperate PA, I can...but probably won't. Like many have already stated, it's about personal choice and goals for their respective systems.
Are integrated amps technically better than separates?
I'm assuming we are talking same class of amplifier and the integrated has the features you want. I'm thinking the integrated could actually be an improvement over separates due to being a more "direct" connection. Taking away the flexibility factor of separates, is my line of thinking correct?