Trust me when I say this. All Aikido is NOT the same. Some styles will stress combat effectiveness and allow zero room for escape. Others can be described as dance-like and show no real worth as a martial art. The answer to your question can vary from school to school even within the same organization. Since Yoshinkan is more true to the old style Aiki-budo, You'll see an emphasis on "Rock Solid" technique. You won't get that all the time with other styles.
Sean Moffatt
"I'm turning Japanese; I really think so."