Some of my fondest memories are of a giant storm knocking out the power in our town for about 2 weeks. We ended up staying at our grandma's house during that time, and my uncle that I always played games with was still living there.
We got Dynasty Warriors 7 Xtreme Legends and Star Ocean: The Last Hope. Powered through SO4 in 3-4 days and spent the rest of that time in the challenge mode of DW7XL trying to push higher and higher on the co-op leaderboards. We ended up hitting top 50 in most of the challenges, it was such an exhilarating feeling!
Its still my fav DW game for the bias of those memories alone though I also adore DW4 and DW8XL. As far as the spin-offs go I loved Hyrule and Fire Emblem Warriors and have wanted to try the Gundam ones our for a hot minute. HnK one was solid and what little I've played of the Berserk one was great!
Has anyone tried the Dragon Quest ones? Also really wanna try an Empires game someday.