I agree with both but, for now at least, I've run into a little bit of a road block with featuring them.
When an image is 'featured' it creates a reduced size 'thumbnail' copy of the image to be shown on the front page. The thumbnail is way smaller than the original version because the intent is to display it tiled with other images. What's happening with these big landscape images is that the landscape dimensions are causing the thumbnail to be shown the full width of the page container but the small resolution of the thumbnail image ends up getting stretched and looks horribly pixelated. At the moment, I'm not sure if there is a good solution short of increasing the dimensions of the thumbnail images but that'll result in bigger file sizes and with several of them displayed at once I'm not sure if the increased sizes is the best solution to handle the occasional big landscape image.
I'll add this to my To Do list of things to check out.