Leveled items question

[yagelazy]

Can anyone tell me what level you have to be at to receive the best possible version of leveled items? Is it like oblivion where there is a set level for all leveled items or is each item different? I noticed that chillrend has 6 possible levels while most other items have 5. I'm asking because I received the nightingale blade at 23 and it was only the 2nd level. I reloaded a previous save so I can do some power leveling backside I really want the top teir of all leveled items I receive. Thanks for your help.

[Frost Mage]

Since Skyrim's leveling system is a mix of Morrowind's and Oblivion's, and since the wiki isn't up yet, I'd think that there would be some leveling in place, but not so much as Oblivion.

[yagelazy]

Im thinking that as far as leveled items go there is an initial level (1-15 first teir of the item) then hopefully every 5 you reach a new teir. I'm hoping by 35 to have the highest teir nightingale blade.