My rounds are as long as I feel like I want them to be. If a villain needs to fit a 20 second speech in his 6 second round, I'm not going to fret it.
I ran a ship combat/skill challenge, where people had to run all around the ship to do stuff. My rounds were approximately 20-40 seconds in that case, because I didn't want people having to spend multiple rounds moving. I just said a move action takes you from where ever you are on the ship to where ever you are trying to go. It was important to have everyone doing a standard action every round to beat a clock. If I asked for multiple move actions to get to places, the situation would suddenly become too static, where no one would want to move.
I'm a fan of the flexible round length. So a round is however much screen time is appropriate and needed for a character.
I ran a ship combat/skill challenge, where people had to run all around the ship to do stuff. My rounds were approximately 20-40 seconds in that case, because I didn't want people having to spend multiple rounds moving. I just said a move action takes you from where ever you are on the ship to where ever you are trying to go. It was important to have everyone doing a standard action every round to beat a clock. If I asked for multiple move actions to get to places, the situation would suddenly become too static, where no one would want to move.
I'm a fan of the flexible round length. So a round is however much screen time is appropriate and needed for a character.