The problem with signing both to long term expensive deals at whatever they ask for (up to $25/30m for 4/5 years) is that we already have Tulo, Martin and Donaldson on expensive deals. Even with a very large payroll we'd be restricted on filling out the rest of the roster needs, both now and in the future.
Plus if we had a down year either of the next 2 seasons (can happen to anyone) the pressure to blow it all up would be immense.
I'd much rather sign one (ideally EE) and let the other walk, I do agree that this shouldn't handicap us too much even if we overpay to the tune of $25m for 3/4 years. But if both ask for ridiculous amounts then I'd say take the picks.