yer favourite blues progression

I love the key of A and E the most - although I play blues in most keys - I cannot seem to venture out of certain tonal centres - example - when I play Johnny be good - I use the key of G - But I do a whole lot of songs using a beaut 12 bar in E. In other words I really like the sound of the blues in E....I guess it's just the way you evolve as a guitarist - but I play the same riffs over and over again.....But last night I pulled out my Blues book - with some tasty 7th bar chords in A - It just sounds so sweet - I cannot seem to play it many other keys tho - I have been playing for at least 12 years - I play alot of different genres - Im loving Jazz too at the moment - Oh - also - I just brought a Boss RC 50 - just awsome - has anyone else got one - Oh - and another thing - I have had this Korean made Tele under my bed for the last twenty years - I think its from the late 70's early 80's - it's inspired me to play more blues now - the sound from the neck pick -up is so sweet - not to mention the maple full length neck!!!! just Heaven - I guess there's no definitive question...just what are yer favourite blues progressions to Lead solo over! Thanks Chordians!!!