I prefer regular tubed tires. I have 8 bikes and use 4 to 5 of them for regular commuting. The care and feeding of that many tubeless tires is just more than I want to deal with.

As for how the wheels are built, strong wheels don’t have to be heavy. In fact, heavy wheels aren’t necessarily stronger. I use very light rims on my off-road touring mountain bike wheels which get more abuse than commuting wheels do. I use either Mavic XM717 or Velocity Aeroheads for most of my builds. The key to a strong, durable wheel is the spokes. Rims add little to the strength of a wheel. My preferred spokes for all my wheels are triple butted (2.3/2.8/2.0mm spokes) from either Pillar or DT Swiss Alpine III. These wheels will carry 40 lbs of gear on rocky roads for hundreds of miles. My touring bike uses similarly built wheels and have provided great service over thousands of heavily loaded miles.