Been a long week for me too, Tam... I totally empathize
If Wattage is held the same, the lower resistance coil will draw more Amps, because it has less resistance. At 10W of power, a 2.2 Ohm coil draws 2.1A, and the 1.8 Ohm coil draws nearly 2.4A. The lower resistance coil will heat and cool faster, which is great if you chain-vape, so you aren't cooking the juice with a coil that stays hot longer. For a casual hit with a long draw, the higher resistance coil is better suited, IMO. Both are so close to not really have much difference in power consumption, but the 1.5-1.8 Ohm coils are a good starting point for the new vaper...
Most people will use a higher Wattage with the lower resistance coil, to achieve a better vape (flavor, vapor production, warmer), so the lower resistance coil will require even more Amps (power) because you'd likely dial it up to 12-13W (if 10W tasted good on the 2.2 Ohm coil).