I am either going to get the Sennheiser PC 350s or the Logitech 930s. Which one should I get? Pros and cons of both?
If there is another headset better in the price range, then recommend it, but these two seem like the best.
Sennheiser is a good choice.
The best headphones cover the ear, like a cup. No pressure on the ear lobes.
What you do not want is a headphone that presses against the ear lobes, like foam pads pressed against your ears.