IMHO, if you use a suction type oil change device it REALLY needs to be one that allows you to draw out the oil while it is as hot as you can get it. When the oil is hot, many more contaminants are churned up in the oil and will come out rather than clinging to everything inside the engine.
After all, the main reason you're changing the oil is that it is the only method you have to properly clean the inside of the engine.
The other important part of an oil change is looking around underneath to see what might be leaking or falling off.
Change oil hot and change oil often,