One of the best Hal Jordan stories is 'Emerald Twilight'. It shows a dark turn in Hal's life as he succumbs to the power of Parallax. Another great one is 'Rebirth' which rejuvenates his character and brings back his heroic essence. Also, 'Secret Origin' is a classic that delves into his origin story in an engaging way.
Well, Hal Jordan is from Earth. He was a cocky and confident test pilot. One day, a Green Lantern, Abin Sur, crashed on Earth. His power ring had to find a new wielder. It selected Hal Jordan. Hal then had to learn how to use the ring's powers, which are based on willpower. His origin story is about him going from an ordinary human to a powerful intergalactic protector. He had to deal with his own personal issues like self - doubt at times while facing off against some really tough foes in the universe.
Hal Jordan's origin story begins as a test pilot. He was chosen by a dying alien named Abin Sur to inherit his power ring, which made him a Green Lantern. This ring gives him the ability to create constructs out of green energy, limited only by his willpower.
Barry Allen's death in the comics is a complex situation. Sometimes he does die, but often there are plot twists and resurrections as part of the ongoing comic narrative. It all depends on the creative direction of the writers and the demands of the story at that time.
In certain comic versions, Barry Allen is indeed identified as Jewish. This aspect is sometimes incorporated into his character background and story arcs.