opinions please!

Brodi and I are building a set and we disagree on what the cost should be for this red/blue card should be
the three current options are: 1UR, 2UR, UUR, or URR
Cade Gozsan:

Plainswalker- Cade

If you would draw a card, you may intuit 1 instead. If you do, put a loyalty counter on Cade Gozsan.
-1: Cade Gozsan deals 2 damage to target creature or player. Draw a card.
-6: Cade Gozsan deals 5 damage to each opponent and each creature you don’t control. Put the top 5 cards of your library into your hand.
2
thank you so MUCH!!!

Determining casting cost is done by a two-years intensive testing process with a crew of PT-qualiber playtesters, and even then, they sometime miscost cards or feel that multiple casting costs are possible options.
The options you propose us are so close that it's not possible to know which one is the best for your custom set without a such intensive test of your card (which may organicaly evolve in the process anyway). The only thing you'll get here are gut feelings, not wellthough opinions.

Sweet design though the (much needed) 'Put the top 5 cards of your library into your hand.' clause seems a bit odd.

Converted mana cost seems really aggressive for such a powerful card (I guess 'intuiting' is some kind of card selection ?).

Anyway Emilien is totally right about the testing process.

2UR is the min imo