What's Best, Spray Bar Or Funnel?

I currently use a funnel outlet, but have had a spray bar in the past - I found it clogged up easily and had to be cleaned regularly but they could be better now-a-days?

I'm not sure whether one is better than the other for the fish though - I think the key is to ensure you have some surface movement either way. My funnel outlet is below the surface but I have it pointing up towards the surface and at an angle so as to both disturb the surface and create a current around the tank. I also occasionally supplement the water movement created by the filter with a small wavemaker.

I would imagine that a spray bar above the surface would be best overall for oxygenation but is likely to be noisy!

All you need is for the water surface to ripple as it moves quickly from one side of the tank to the other - adjust the angle of the funnel if necessary. You don't need bubbles, all they do is churn the water up a bit. Oxygen doesn't actually dissolve from the bubbles, it dissolves at the water-air interface ie the surface. And carbon dioxide leaves the water the same way.

Thanks all