Electric is less expensive, less complicated (plug and play), and much much faster. Just check all the world records. I like how the electric doesn’t easily piss off neighbors the way nitro cars would. You don’t need fuel to run it, you’d only need batteries. It’s also easier to work on and easier to maintain. Cons, hm. overheating could be an issue for LiPo. Take extra care.
As for Nitro, it is definitely not for beginners – the constant tuning every time the temperature or humidity changes, very high maintenance. You also need to clean it after every run. The smell and noise are just not for me, it’s a matter of personal preference. Some like it, some don’t.