The demand for competent legislators and men for the occupancy of other spheres, at a time when the population of the state was sparse, opened the door of opportunity to aspiring young men to which class Collier belonged. When only twenty-six he went as a representative from Tuscaloosa County, and so profound was the impression made by this solid young man that the legislature, at the next session, elected him to a place on the supreme bench, a distinction the more pronounced because his competitor for the place was Judge Eli Shortridge. Four years later, on the occasion of the reorganization of the state courts, Judge Collier was displaced from the supreme bench, but was retained as a circuit judge for four years, at which time Judge Saffold retired from his seat on the supreme bench, and Governor Clay appointed Judge Collier in his stead, till the legislature should meet and elect his successor. On the convening of the general assembly, Judge Collier was met by a contestant for the honor in the person of Hon. A. Crenshaw of Butler, but the election resulted in favor of Judge Collier, who received more than twice the number of votes given his opponent. For twelve years he continued to dispense justice in that high tribunal, and the value of the service rendered the state by him is attested by the luminous and voluminous decisions which run through thirty-five volumes of the Alabama reports, a perpetual monument of valuable labor. By this time no man so completely filled the eyes of the people of the state as Judge Henry Watkins Collier. His high sense of justice, his impartial incision, and his solid and unvarying calmness made him, without self-effort to attain it, the dominant public figure in Alabama. Practically without effort, he was chosen, almost by a unanimous vote of the people, to the office of governor. This was in 1849. Judge Samuel F. Rice, one of the brightest and ablest of Alabamians, appeared against him, and the final vote stood 36,350 for Collier and 364 for Rice, with a few scattering votes. At the close of his first term for governor three competitors appeared in the field for the same distinction--B. G. Shields, Nathaniel Terry and William L. Yancey, and of a total popular vote of 43,679, Governor Collier was indorsed by 37,460 of these.