At 5 feet even, a crusier is the only choice, and the weight you've mentioned is enough to "muscle" a 700 pound Harley Davidson Electra Glide into obedience + everyone looks like a macho man on a harley (I'm not gay in case if someone is wondering) & because of your muscular appearance you'll look like a Hardcore Biker Chick! I apologise in advance if it feels offensive to you as its not meant to be and just a food for thoughts.
As for Sports Bikes, they must be lowered as all of them have at least 30" seat height, and people around 5' have around 25" inseams. Choose wisely. Look into some japanese crusiers if you don't want all that "HARLEY STUFF". Something like Kawasaki Vulcan 900, Honda Shadow 750, Yamaha V-STAR 950 or Suzuki S50.
Good luck.
Go check out the new Kawasaki 300 Ninja. Its a very affordable option for the first time buyer/rider
.Its lightweight com paired to most bikes which makes it easy to handle.
I have a 2007 Kawasaki 650R Ninja, and I really like it, but you're 5' 0" and it may be too tall for you, but they can lower bikes now. The 650R is the type of bike you could keep for years because the engine has plenty of power for the streets or the highways. It has tall handlebars so you can cruise all day without hurting your wrists or back. It's great on gas. It's easy on insurance too. I think it's a very sharp and contemporary looking bike.
It's all confidence and skill. Don't listen to people who say you can't ride a sportbike. You just will have to learn how to one foot it. Worst case scenario is you can lower it. I'm 5'3", and I get it done. Taller people just don't understand, but where there is a will, there is a way! Good luck!!