Inquirer Herald/AP by Becky Bohrer.  As the legislature enters its final three weeks, four major bills stand out amid a flurry of others vying for attention: the budgets, and bills dealing with oil taxes, a liquefied natural gas trucking plan and in-state gas pipeline.  Gov. Sean Parnell said those "will probably have the most positive impact on Alaskans, and are the most significant pieces of legislation that are out there."