UBS vs Jefferies vs RBC vs Cantor

I wanted to get some feedback on ER at these different companies.

I would list them in the following order (contains the sector)

1. UBS (consumer)
2. Jefferies (Industrial)
3. RBC (Industrial)
4. Cantor (Biotech)

Would love to get others opinions on ER, which has a better culture, and as always, exit opps.

Thanks.