I'd recommend using thrust oriented swords. Without a shield, you'll be faster and can get better speed bonus. Which is an important thing for thrusts if you ask me. Long espada was my favourite. Side sword, italian sword, knightly arming sword, scottish sword are all viable options too depending on your preferences. All 1h swords have their use, and will be good but I'd recommend picking a long onehander. That way you can adapt yourself to the sitation better. Left swing, overhead swing and thrust would be useful for clusterfucks, left swing will be useful if the enemy is very close, right swing and thrust will be useful if you need to gain range. All in all, long espada is the best, knightly arming is the most balanced for this. 18/21 or 21/18 are both good for this kind of setup.