One thing to keep in mind when putting together a multi-channel HT is that you want your front three speakers (right, center, left) to be by the same manufacturer and, ideally, out of the same product line. This is so there is no awkwardness of sound or tonal differences during front panning...
There’s no real way to check this. Most, if not all, manufacturers list their power ratings with some ridiculous number like “one channel driven at 200Khz with 10% THD”.
For the most part, you can completely ignore what any receiver manufacturer claims to be their power handling and know that...