which is better? Stereo Amp or Monoblocks?

Over generalized rule:
Cost no object:
 usually monos.
Value prioritised: 
usually stereo.
Many exceptions.

I have had both. Stringsteen has it right

I think separates is the best when it comes to home theater.

Have you considered something like the BAT VK-6200?  Separate amplifiers in a single chassis?

Mono amps tend to excel in:

• Stereo separation
• Power supply
• Current delivery
• Heat dissipation

If you have difficult to drive speakers, or just want to have the absolutely most solid amplifier possible that is the way to go. You aren't going to find a 200 W class A amplifier that goes down to 1 Ohm (1600W) in a single chassis, the power supply and heat sink requirements are monstrous.

But better...... meh.

In a HT that I could afford to live in however, I’d be looking at the ATI or NAD digital amplifiers based on Hypex modules. Smaller and more compact units are much more attractive to me these days.

Best,

E

Well,  just like ( dlcockrum ) said, that ( stringreen ) above nailed it, and I agree.  stringreen, that was a very good answer, and now I'm going to put something in and see if I can nail it as good as stringreen.

This is something that I have kept in my notes for many years and I thought I share it with everybody since it's perfect for this discussion.

From the old "Audio magazine" ( February 1991 issue, page 74, The late and great speaker designer Jim Thiel of Thiel speakers wrote
"speakers will sound better with one very good amp than with two lesser amps". He also went on to say that your speakers should always be used with the best stereo amp that can be afforded rather than splitting the available money between two amps.

I think this is one of the very best pieces of advice a stereo manufacturer can give a customer and I agree. A really good $10,000 dollar retail price amp should always be able to beat a pair of mono blocks that retail at $5000 dollars each, basically. This is just my opinion as well.

By the way, I never owned Thiel speakers, but I always liked them.