Your chances are very good if you have connections and look at the right tower. We're going to be doing a lot of hiring in my tower, but since I don't know you enough to hate you, I wouldn't recommend you come here. The higher paying ones(like Las Vegas) prefer ex-FAA(sometimes exclusively) but will sometimes accept dispatch or pilot experience. The heavily contracted one's like mine are far easier to get into with no prior FAA or ramp tower experience and just being a dispatcher and/or pilot would be a huge plus, BUT, I will tell you every ramp controller hired at my airport since I started was in a "Hey this is my buddy so-and-so" situation.These jobs have stacks and stacks of resumes that will never even be reviewed. You honestly need to know someone, or at least call and ask for a tour and meet them face to face.
Next month I start training a member here who I met at NJC this year who was a furloughed dispatcher, they were very impressed with his credentials(pilot as well). I'd like to say personality goes a long way, there is usually a link between humor and intelligence and I've noticed the majority of ramp controllers and many FAA controllers I've met are funny and chill/laid back folks. Sure there are high strung and not too bright ones out there, but I know when my friends have interviewed successfully, I usually hear "he seems chill" or "Yeah he's a cool dude I'd work with him" from the people who matter rather than talk about their backgrounds. One guy who didn't have an internal reference(but was still recommended by an airport duty manager)was about to get hired up here had his offer revoked when he came up for a "welcome aboard" interview and rubbed everyone the wrong way being cocky and having a know-it-all attitude. Keep that in mind if you talk with and meet guys in the tower, just try to relax and be yourself.
All that being said, working in a busy tower, especially one like mine where you also responsible for a huge chunk of the airport operationally on top of ramp control, is the best job I've ever had fun wise. Love every second of it. Even when I come to work pissed that I couldn't be out doing this or that, it all goes away when I'm moving planes around and making big decisions that effect everyone as problems come up on the ops side. Highly recommend it, but know what you're worth and get on with a good company like Robinson or a city run tower. Any more questions feel free to PM me, or just ask here if they aren't too specific/private so others get an idea.