I'm an RN and while I have only good things to say about the LPN's I have worked with but the truth is you will have many more options and recieve significantly higher pay as an RN. Some hospitals do not hire LPN's and the ones that do in my area only hire them to work specific areas like Medical Surgical floors. Working in the PICU, Pediatric Intensive Care Unit, or NICU, Neonatal Intensive Care Unit, would not be an option as an LPN at any of the hospitals where I live.
However, the RN programs are more academically challenging. You might investigate whether the school in your area has a program that allows you to get your LPN in the process of pursuing your RN some, far from all, are designed this way. This would give you options along the way. Good Luck