I think it’s always up for debate and depends on what your needs are.
We usually pick GCH because that price is hard to get any other time of year. But I’ll admit that we have had mixed experiences there (with the room.) Our most recent stay, the room was smaller and darker... and this is with the renovated rooms. But another visit, we had an unexpected upgrade to a park facing room.
DH has it’s classic Disney charm. But I’ve also had mixed experiences. Again it depends on the room.
Dapper Day events are usually at DH. Since we’ve been going, I’ve only seen it once at GCH.
If you are going for Spring DD, is also factor in pool usage. Fall DD may be a little too cold.