They are both fine rods, I like each but for different reasons. Where the RPLXi had a real sweet spot (3-pc) and loads on auto-pilot the Xi2 has serious power and lifts line + throws laser loops with more authority.
Where shorter line flips and instinctive reactions are more likely to be successful with the RPLXi, line speed and reach are more likely to be achieved with the Xi2.
Of course these subtleties may cancel out depending on who's hands the rods are in... and I am comparing years of dedicated use of the RPLXi against a brief interlude with the Xi2 at fly shows... but I believe this comparison to be true for my way of casting.
I was also very impressed with the T&T 9wt at the show. Are you looking at travel rods?