Well, I gotta chime in by now.
I looked at a bunch of Avalons on the Toyota lot when I was scanning the new Camry and I've gotta tell you the Avalon Touring is the deal......
For $31-32K, you've got a pretty-well loaded Avalon with leather, moonroof, yadda, yadda AND the touring's slightly firmer suspension tuning AND the silver metallic trim replacing the bright wood. Plus you get a more attractive wheel-and-tire package.
I really question ANYONE that calls an Avalon's interior "plasticky" and then wonders why anyone wouldn't pick an Impala LTZ over it. Have these people literally sat in both cars and compared?
Impala's okay....and a nice GM effort....but the interior isn't nearly as large inside, or as comfortable in the back, AND it certainly doesn't have as nice of materials inside as the Toyota.....cheesy center stack doors or not.....
Plus, for low-30's......you get a strong and super smooth V6 that punts the Avalon from 0-60 in 6secs flat. The ONLY GM sedan that can beat it (and barely at that) is an Impala SS or Grand Prix GXP at around 5.7secs 0-60.....and I'm guessing the Avalon will provide WAY better real-world fuel economy.
To get a closely comparably-driving Lucerne, you are looking at AT LEAST a CXS model at around $36K-$38K. The CXL is too floaty and boaty....the V6 is too underpowered....hell the V8 isn't near as quick....
SO....based on what he's looking for, I'd say Avalon Touring is the way to go.
I would probably take a fully-loaded Lucerne CXS over the Avalon.....but then I'll spend alot more money for it.....so if price is a serious issue, the Avalon Touring at $32K looks very attractive next to the Lucerne at $38K.