No.
I had the Samsung Galaxy S1, I thought it was rubbish, slow etc.
I moved to an iPhone 4 I think it was. I loved it, it worked so much better.
Since then I've had the Galaxy S3, HTC One, OnePlus One, Note 3.
Android has improved so much since that Galaxy S1. I just couldn't imagine going back to an iPhone. They do physically look like nice devices and I think they always feel solid. But iOS just doesn't seem to ever change.
Yes, I've started to get into flashing different ROMs on Android (I dabble at least), so I'm not your every day consumer. But even still, to me iOS has just become boring.
I don't care how thin and light a phone is, I'm not a wimp. It made an impact with my iPad 3 to the iPad air, but not a tiny phone..
All of the top end smartphones are powerful and fast and have "good" cameras. Personally unless something came out with exceptional battery, it is the software which makes phones more interesting. Though the S-pen for example I do like and use 'quite' often on my Note 3 and I'm not changing yet to like Cyanogenmod from Stock Wiz because you lose some of the functionality.