I'd say it depends on your salary expectations and what areas you are interested in/what you want to do. While LPNs can work in most areas now, some provinces restrict them more in the more acute areas (L&D, ICU, ED, etc). Also, if you want to be an educator or manager, many places require a BScN at least, if not an MScN.
For salary, RNs top out higher than LPNs.
If you aren't sure nursing is for you, you can always do the LPN first, and then if you love it, and want to become an RN, bridge to RN and work as an LPN while you do so.
Both are very rewarding careers.