Personally, I'm just using dipoles at the moment (except for a 5/8th vertical for 10m). In the UK, we're allowed to assume maximum legal limit at the antenna feed point (for the most part). That means technically, we can feed more power at the shack side to allow for feeder losses. I prefer the measure my power limit from the shack end and not the antenna feed point end, therefore I run under 400W PEP from the shack end and not the antenna feed point end. Some countries have you measure it from the shack end, so mileages may vary significantly. You just have to follow the regulations that your country's regulator sets down.