Putting the LA rivalry aside...does anyone else think a spire on this tower would actually look kind of cool? Using the same roof to spire ratio of One WTC (30% of the roof height), a 250 or 300 ft spire coming out of salesforce tower could look cool. The crane sticking out from the construction of Salesforce Tower gives you an idea of what it looks like and it doesn't look bad at all...
Here's an ultra crude depiction just to show the overall shape with a spire. Looks pretty cool.
http://imgur.com/gallery/XWXls