Not how strong he is BUT how large is he? I ask this because depending on the artist, I've noticed his size changes. I've noticed size variances in his ape and cat forms. I've always thought Beast was fairly large--not as big as the Hulk or Juggernaut, but around the Thing, just slouched over. However, versions of him such as in Astonishing X-Men have him thin as Wolverine and shorter than Cyclops. I like him large. Thoughts?  

It depends on the Artist....and for a "team powerhouse" Thing isn't actually that big, he's about 6' something, which compared to guys like Hulk and Juggy, he's not that big.
 
I've always assumed Hank was around 6'4" as he doesn't really hunch over anymore due to him not being "ape like" anymore