Wall Street says Intel Corp (INTC.O) is the best suitor for Qualcomm Inc’s (QCOM.O) chip unit, if the maker of Snapdragon mobile processors decides to break itself up. “The chip deal to end all chip deals,” says Cowen and Co analyst Timothy Arcuri, would give Intel’s smartphone chip making business a much-needed boost. It would also allow Intel to expand its footprint in the key Chinese market.