In the most recent JBoss newsletter they published the result of a poll they did of their user based, asking what is your favourite IDE. Eclipse comes in at 58% and if you combine MyEclipse it pushes the total to 67%. This reaffirms the trend I have noticed in surveys of java developers, Eclipse is usually used by about 55-65%.
Here are the results of last month’s poll that asked: What is your favorite IDE?