Yes, they had plenty. The XB-46 was competing for a reconnaissance bomber contract which was essentially, "hey, give us the bomb load and range of a B-17 but with jets!" The Air Force split the contact in two essentially with two four engine designs vs two six engine designs. Then they'd pick the better of two for larger orders. The B-45 was more traditional, but it didn't hold a candle to the B-47. So in the end, the B-47 won the competition.