The prize for "The Most Seamless Transition" between movements goes to Jean Sibelius for his 2nd Symphony, movements 3 and 4. Okko Kamu on DG or Barbirolli on Chesky
Melodic - Beethoven's Fifth Piano Concerto - The Emperor, too many to list
Dramatic - Mendelssohn's Symphony in A Minor, 'The Scotch', Peter Maag, or Mahler's 2nd, 'Resurrection', Fischer
Rushton - nice to the see a list with several Brits on it - Holst, EJ Moeran, Finzi, et al
Tim