Chickens and other poultry eat insects if they are raised on pasture. They directly convert this abundant food source for us. Chickens taste better and are easy enough for anyone to raise.
Chicken is usually more bland, I guess. While insects vary a lot. Some can be pretty tasty, others quite awful.
WRT "bland", that's why you cook your food. Throw in some spices and soy sauce and combine with greens or pasta.
If we're talking about not using much seasoning/condiments/side dishes, then nothing beats nice beef.
And, in my opinion, chicken's dark meat is much better than the white.
The chickens we raised on pasture had the deepest flavor of anything we ever experienced and our birds were some of the healthiest I've ever seen.
And there's the small but significant risk of a bird flu developing in the poultry population.
Birds raised on pasture are much less susceptible to this. There is a world of difference between the two. Much has been written on this subject.
I take all of that with a grain of salt and concentrate on providing the best farm environment possible and allowing nature to mitigate the issues for me. This is way it was done for millenia before corporate agriculture and media got involved. Non-mainstream education is paramount in this area.