Seems like the "phablet" is gaining such popularity that the term may be disappearing as more people start expecting smartphones to have screen sizes in the 5.5 to 5.7" range. The latest Samsung Galaxy S6 Edge+ and Note 5 fit those dimensions and the Apple iPhone 6 Plus has a 5.5" display.
I'm still a fan of the traditional active digitizer pen, so that's why I'll continue with the Samsung Galaxy Note series (as long as they continue to support the S Pen). I'll pass on the Note 5 for now since I'm a big fan of the removable batter and microSD card slot that I currently have on my Note 4. The newer Note 5 has gotten rid of these features in exchange for a smoother, nicer overall design.
Here's the key question that I'd like to see answered someday: if the iPhone 6 and 6 Plus were priced equally, which would be more popular? Right now, the 6 Plus is $100 more, so I'm sure that deters many potential customers who would prefer the larger screen but is perfectly willing to settle on the smaller iPhone 6.