Honestly, this poll is lacking in several areas and shows something of a lack of understanding of how POV should be used.
1st and 3rd person POV are the only viable options. 2nd POV only works in choose-your-own-adventure style stories, and it's a little tiresome and off-putting in any other format.
Mixing POVs should NEVER be done unless it's accompanied by a change in character POV. It is a viable option to have the MC's POV be 1st person, and side character POVs be in 3rd person, but that's the only time you should ever mix them. It's also an option to do both in 1st or both in 3rd. If you're going to mix them though, then only the MC should be 1st person and ALL of the side characters should be 3rd person (for the sake of consistency.)
There are also the omniscient and deep sub-categories that should be added, for a total of 4. There is also an in-between state called "limited omniscient" which increases it to 6. So, the actual list of options should look like this.
1st person deep
1st person limited omniscience
1st person omniscient
3rd person deep
3rd person limited omniscience
3rd person omniscient
(Of those 6, 1st person omniscient is not recommended and 1st person limited omniscient is difficult as well)