It doesn’t matter who your carrier is, you’re gonna have some complaints. But is the grass always greener somewhere else? To answer that question, the kids at Laptop Magazine have conducted a test of the customer service practices of the big four (Verizon, Sprint, T-Mobile, and AT&T) to ascertain each company’s friendliness, knowledge, and timeliness. The publication placed customer service calls twice during a week (once at midday and once during rush hour), visited two stores per carrier in New York City, and tried to find solutions to its problems using each carrier’s online knowledge base. Apparently, T-Mobile takes the prize for in-store assistance and web support, and Sprint, while not always able to answer questions, at least had taken steps to streamline the support process (and the fact that its employees were friendly didn’t hurt). Apparently Verizon Wireless offered solid in-store support (albeit with grumpy employees), “quick and accurate phone support” and “solid” online help. AT&T, sadly, was the loser here — Laptop says it left the store “shocked” that one representative couldn’t figure out how to get email up and running on its Blackberry. Shocking!