So you prefer the lag, stutter, and vastly inferior multitasking of the 6 plus?
You really might be the only one. The 6 plus was the worst performing iPhone out of the box that Apple has ever released. It felt so refreshing to get the 6s Plus and realize what the 6 Plus SHOULD have been. I can actually use more than 2-3 apps without them constantly refreshing and Safari can actually hold tabs in memory now.
Never had those issues with my 6 Plus except for the reloading issue caused by the 1GB of RAM.. Read about them, though.