Basically it mostly boils down to screen size and the cameras. The rest is negligible. I have big hands so I need a bigger screen. If that wasn't the case I would go for the SE without hesitation. Most of the back camera comparisons show minor differences. The Wide Angle is a bonus, but not a necessity. You have to take into account your daily use of a phone then go from there.
Let me break down some of the differences.
What the SE does not have:
Larger Screen
Wide Angle Lens
Night Mode
Deep Fusion
12MP Front Camera VS 7MP
Face ID
4GB RAM VS 3GB
What the 11 and SE both have:
A13
Wireless Charging
12 MP Back Camera with Portrait mode (SE for humans only)
Stereo Speakers
Haptic Touch
327 PPI Screens with Wide Color Gamut P3 and True Tone.
Let me break down some of the differences.
What the SE does not have:
Larger Screen
Wide Angle Lens
Night Mode
Deep Fusion
12MP Front Camera VS 7MP
Face ID
4GB RAM VS 3GB
What the 11 and SE both have:
A13
Wireless Charging
12 MP Back Camera with Portrait mode (SE for humans only)
Stereo Speakers
Haptic Touch
327 PPI Screens with Wide Color Gamut P3 and True Tone.