I am going to audition (again) 802 and 803 d3s next week. I am also torn by this. I have a 2 channel system based on Revel F208s paired with a C2600/MC462 and it sounds magical in my home. I did a side-by-side and for sure, the 803 is a better speaker than the 208. The 802 even more so. For music though, the F208 just seems wonderful, especially without a direct A/B comparison. My current need is more for the HT setup though and I keep going back to the 803s and 802s being "overkill" for primarily HT usage. I do not think the F208s are well suited for HT duty so I do not really want to move them (again - incredibly happy with my 2 channel system). If I buy an 802/803 it seems like they should move to the 2 channel system for sure though since they are "better".
I currently have an HTM2 D3 center channel paired with ML Motion 60XTs in my HT setup. Looking to put the motions to rear duty and upgrade the fronts to better match the HTM2. That is primary motivation. I have also considered 702 and 705 options to build out the system. Currently being amped by an MC205.
Seems like consensus here is to get the best speaker one can buy and enjoy. For sure 802 > 803 > 702
