I have pretty decent speakers in my HT systems, but I opted for the Anthem Receiver in both instead of separates. In one system I was replacing another AVR, but in the other system I was using a Parasound 5 channel amp with an older Marantz pre pro.. I retained the amp in the basement system and I'm using
the Anthem MX 570 there just as a preamp, and compared to the old Marantz the improvement is huge. I suspect the Room Processing has a lot to do with said improvement, and that it would have been money poorly spent to go with separates.
In your case, since you yourself have a poor opinion of your speakers, which after all are the most important part of any system, it surely would be money wasted to go with separates. You also state that the main use will be for video and not Music, which again means that (IMO) having a nice system is less important. With your speakers you won't be able to get very immersive movie sound
the Anthem MX 570 there just as a preamp, and compared to the old Marantz the improvement is huge. I suspect the Room Processing has a lot to do with said improvement, and that it would have been money poorly spent to go with separates.
In your case, since you yourself have a poor opinion of your speakers, which after all are the most important part of any system, it surely would be money wasted to go with separates. You also state that the main use will be for video and not Music, which again means that (IMO) having a nice system is less important. With your speakers you won't be able to get very immersive movie sound