I went with a ThinkPad P50. It's not nearly as bulky as some think. I specked mine with the Xeon processor, and 1080p screen (but 4k is an option). Also specked

I went with a ThinkPad P50. It's not nearly as bulky as some think. I specked mine with the Xeon processor, and 1080p screen (but 4k is an option). Also specked everything else as low as possible (HDD/SSD, RAM). I upgraded these items myself after. I now have a server grade processor, have put two 512 SSD in it (one M.2 NVMe), and 64GB of RAM. It's a beast. I can also swap out the LCD panel directly for the 4k panel if I so choose with an after-market one later if I so choose. Initial base price was only around $1400 (was on sale), and about $500 for the SSD/RAM on my own dime (would have been well above $1000 on lenovo's site). So for ~$1900 I have something that blows the MacBook Pro out of the water.