Which would be better to have an iphone 6s or an iphone 6s plus?

Which would be better to have an iphone 6s or an iphone 6s plus? - 1

Added (1). and why or why not it's be better to have iphone 6s/plus

Plus

The 6s Plus has better specs but it depends f you like the size or not. It's bigger the the regular 6s. If you don't mind the size or you like it, then go for the Plus.

Pros/cons of bigger screen:

Pros: Can see stuff easier, videos and games look better and more immersive on bigger screens
Cons: May not fit in smaller pockets as easy, might be a little harder/less comfortable to hold

Depends on if you value the bigger display, bigger battery, OIS for the camera.

There are only 3 differences between the phones. The iPhone 6s has a 4.7 inch "IPS" LCD that offers a 1,334 x 750 "326" pixels per square inch resolution.

The larger 6s Plus has a 1,920 x 1,080 resolution, giving a 401 pixel per square inch density. It's 5.5 inches in size. (IPS LCD)

The 6s Plus has a slightly bigger battery that will offer slightly better battery life. And the main camera has optical image stabilization that the smaller iPhone lacks. Those are the only differences.