Which way would you plumb this toilet?

[peterf]

I am moving the location of my toilet. To vent the toilet alone, I would need to loop under the nearby wall and back around to vent up the wall as shown in the first picture. The 2" coming in to the top of the 3" sanitary tee is a properly vented shower only (my sink drain is far away). My other option is the second picture where the 2" properly vented drain shower drain is used as a wet vent and eliminating the looping under the wall. Which way do you think is best?