As a person who has had a Note 3 for 6 months now, this is not a fair comparison.
1. The iPhone 6 plus is narrower, hence it should be easier to hold one handed, and use one handed.
2. The iPhone 6 plus is thinner, hence it should be easier to hold and use one handed.
3. The iPhone 6 plus is taller, this is where the difference will be in pocketability, I believe. But remains to be seen.
Obviously it's not the perfect comparison because I haven't held the 6+ and they don't have the exact same dimensions. However, they are both large devices with similar dimensions. I'm just trying to help people by answering their questions about what it's like having a large phablet like the 6+ or Note 3 in day to day life.
----------
Say you are wearing tight jeans I would imagine you'd have to take it out of your pocket when sitting down otherwise it would probably be uncomfortable no?
No, I can take it out of my pocket fine while standing or laying down. In fact it's usually easier that way rather than taking it out while sitting.