maybe grind more to get better gear and find better people to paly with ? Thats what we doing and farming our ass off,
For me you're all doing a mistake by mixing "not enjoyable" and "harder" dungeons. In my opinion: DoS SD and ToP are harder dungeons but really enjoyable because challenging and rewarding. PF is easy but boring SoA and NW are average HoA and Mists are the easiest by far. Of course, if you wanna do a quick 14/15 for weekly vault, targeting HoA of MISTS is easier. But most picked dungeon is not similar to better designed dungeon for me.