I would love to buy a TL if it had awd option...because it's an excellent, reliable car - much more reliable than Audi A4/A6. My current car: Subaru Forester - is inferior to TL in many respects, but it has (2) limited slip differentials and awd. MDX is too big for me, but RDX doesn't impress me at all - seems like a toy.
Boris