"Good looks really mean very little. An ugly person has a higher probability of having gone through the experience of being disliked for causes that are not under his control."
- Red I used the word attractive but you filtered this as 'good looks' but you make a good point because we fall into this trap so often. We filter other peoples words and give them new meaning, then by using our words we have put our bias/slant into a discussion.
Attraction is in the eye of the beholder, this is not a good looking vs ugly discussion, this is talking about people who can be more effective leaders by making themselves more attractive to others, I think one of the most powerful ways of appearing attractive to others is when you compliment them, or agree with them, empathise, build rapport, etc
Physical strength, being fit and healthy or strong or tall can be very useful tools in becoming a leader, depending of course what you're leading.
Ask a person to describe their dream partner, many people will find these attributes desirable. How many leaders do we have in the World that are over-weight. How many fat Presidents have there been?