I had both, and there is a huge difference between mummy and wight. Wights are a pale shadows of the mummies, trust me. Though they are strong and have a lot of benefits, they have some issues that are critical for me. They are fun only in regards to RP, but as we already discovered in threads below, I suck at it

I do not encourage anyone to reroll necros until you get the mummy. I won't go this route either now, too, after that I have discovered so much fun on midranks. Earlier, I thought that CF begins on hero. Now, I think it begins a bit earlier, so powerranking to hero is not required now.