Arm wrestle? I can't tell you how you make the decision, but I can tell you that we did 20x20 tiles set on the diagonal in our small (200 sq. foot) eat-in kitchen (plus entryway all in one). I do feel that the diagonal helps the room look larger and I think it's just more interesting than a straight layout. But tile layouts are definitely one of those things that just come down to personal preference. I will say that you will need more tile if you set it on the diagonal because there are more cuts but when you're doing a whole room I think the difference is so little it's a moot point.

I also happen to like sectionals, but in your living, have to agree with others-will be blocking movement, dictating around, and in the end you won't get the comfy vibe and the great function you rightfully want to get sectionals work when put in the corner..:) mostly so-maybe my idea is completely out of place-but would you consider making your family room your TV watching space?I know you have other plans..and of course depends on needs/wants of your family -you know them, I don't. I can see there's not enough wall space there..in our case, I made the opening to the family room smaller to account for TV placement. and we continue to happily use our sectional (it's not like I'm in love with it, but as I'm a lounge-y person..so yeah, works for me.). Also quieter spot to watch TV if one wishes so If it's completely out of question-I agree with AnnKN's suggestion..the arrangement will be much more flexible, that way

I should clarify that I will definitely try before I buy :) I just need to figure out what is available size-wise. It seems from my research that 94" X 94" is on the small end of sectionals, but, I am limited with the amount of room I have. There is a local furniture store that carries many brands here in town. I will be calling them today.

Thank you. What are the dimensions of the table? Our sectional makes a 90 degree angle with both sides the exact same length.