It's not really my choice. My employer threw a Kindle at me on my first day, and then I e-mail my Amazon receipts to an administrative person at work who makes sure I'm reimbursed as part of my next salary payment.

Kobo Libra 2 is nice. Easy to hold, has a warm toned backlight (I switched from kindle to kobo for that reason alone) and with Overdrive it’s really easy to check out library books.