QUOTE(hitokiri84 @ Jan 27 2011, 00:02)

Correct, except I've been doing almost nothing but normal arenas for a week, and I still get a high percentage of godlies, so LotD probably has more of an impact on item quality than you realize. Frequency-wise, yes, you need Scavenger to be pretty high. I'm getting an item drop rate of 8.79% with my Scavenger at 37.
Total Item Drops: 68669 from 751331 monsters (9.14% total drop chance)
Items: 66038 (96.17% of drops, 8.79% drop chance)
Equipment: 2324 (3.38% of drops, 0.31% drop chance)
Artifacts: 307 (0.45% of drops, 0.04% drop chance)
arenas (or the lower ones) aren't that good for a sample. If i do them on BT or hard I often get Lesser/Average for arena bonus on the lower levels. My scavenger and LotD is lower then yours but when I do IW's i'll get less then 5 lesser/average per 1000 godly. I reset my stats before I did my arenas so my sample size is small but this is what I got for doing 1-26 (first page was nightmare, 2nd page was on hard) trio will be BT but i didn't do the ones above that or 27. I'll update these numbers after i finish the trio.
Total Item Drops: 322 from 2623 monsters (12.28% total drop chance)
Items: 305 (94.72% of drops, 11.63% drop chance)
Equipment: 15 (4.66% of drops, 0.57% drop chance)
Artifacts: 2 (0.62% of drops, 0.08% drop chance)
so you need scavenger to get drops and LotD is going to help get higher quality item drops. But I still think the quality of the item used in an IW and the difficulty effect it more. I would like to see the drops you get using the same equipment going from cake to BT and the drops from grindfest for 500-1000 rounds cake-BT.
think I'll do some grindfests tonight.