How powerful are Ichigo and Aizen ?

I have started to get into Bleach, mainly because I've started to hear about the character and it sounds unbelievable. Maybe I have read lies or whatnot, but I've heard everything from "Ichigo can stop Tailed Beast Balls with one hand" to "Aizen is strong enough to fight FRIEZA". Am I being told lies? I know for a fact that Ichigo gets random power-ups and is virtually unkillable, but are the two characters I have mentioned REALLY that powerful?

Here is my scale 1-10 (with examples for both of them)

#1 .Example: Bulma (human Level)

#2 .Example: Naruto Ninjas ( Low level Metahuman)

#3 .Example: Bleach's Shinigami (lower Mid Metahuman)

#4 .Example: Sakura ( Mid Level Metahuman)

#5 .Example: Inuyasha( Higher Mid Level Metahuman)

#6 .Example: Naruto ( Even Higher Mid Level Metahuman)

#7 .Example: 10 Tails/ Kenshiro /Toriko ( High level Metahuman)

#8 .Example: Yusuke ( Planet Busting High Metahuman)

#9 .Example: Goku/ Pegasus Seiya (Sun Raping Metahumans)

#10.Example: Bills/ Saint Seiya Gods ( N/A, Godly powers)

Don't ask why I have put certain characters where, but I've heard Seiya wasn't as powerful as people try to make him out to be.

They are not that strong i think they are around hokage level in naruto or a little bit higher but they have the chance to become stronger than naruto chars i think since bleach will last a little bit

by now you will probably be up to date at the bleach manga but i wanted to answer nonetheless

It really depends on the character some ppl bonkais are so crazy that it could make it hard for anyone to beat them but for the most part I would say 7

last time I read/watched Bleach...Ichigio was barely pushing mountain level with Aizen basically the same, only with more 'hax'. I stopped caring about the series after his defeat though so I'm sure Ichigo is higher now based on how most shonen work.

so destructive wise, that's about Inuyasha's level.

But your 'levels' are not really accurate and a bit simplified.

they are between 8 and 9